119:. The dynamotor took from 1/10 to 1/4 of a second to "spin up" to full power. Police officers were trained to push the microphone button, then pause briefly before speaking; however, sometimes they would forget to wait. Preceding each code with "ten-" gave the radio transmitter time to reach full power. An APCO Bulletin of January 1940 lists codes assigned as part of standardisation.
3787:
Proceed directly to Code 2 calls as quickly as is consistent with safety. Agents may, in exceptional cases, use their emergency equipment (both visual and audible to comply with state law) to traverse an otherwise clear intersection against a red traffic control device. Once clear of the intersection
5437:
Ten-codes require transmission of three prefix characters "10-" and two numbers, so five characters, on top of which digits and punctuation are all long sequences in Morse (5–6 dits or dahs). Letters are all short sequences in Morse (1–4 dits or dahs), so the prefix "Q" and two
4395:
numbers are still used today instead of the corresponding ten-code. Generally these are given as two sets of numbers—"One Eighty-Seven" or "Fifty-One Fifty"—with a few exceptions such as "459"—Burglary, which is given as "Four-Five-Nine". The
American public was made aware of these California Penal
3238:
APCO International stated in 2012 that plain speech communications over public safety radio systems is preferred over the traditional 10-Codes and dispatch signals. Nineteen states had changed to plain
English by the end of 2009. As of 2011, ten-codes remained in common use in many areas, but were
3828:
When an agent is dispatched to a traffic accident, and the dispatcher states, "Code 6," the agent will advise the drivers involved to proceed to the station to file their reports. This will only be done if there are no injuries, no unusual circumstance and the vehicles are safely operable. Driver
84:
A standard arrangement of the context of messages, (for example, name and description of missing person might be transmitted as follows: Name, age, height, weight, physical characteristics, clothing; if car used, the license, make, description and motor number. This information would actually be
122:
In 1954, APCO published an article describing a proposed simplification of the code, based on an analysis conducted by the San Diego Police
Department. In the September 1955 issue of the APCO Bulletin, a revision of the Ten-Signals was proposed, and it was later adopted.
4339:
Radio users will confine all radio transmissions to an emergency in progress or a new incident. Radio traffic which includes status information such as responding, reports on conditions, at scene and available will not be authorized during this period.
3211:
While ten-codes were intended to be a terse, concise, and standardized system, the proliferation of different meanings can render them useless in situations when officers from different agencies and jurisdictions need to communicate.
196:. However, the ten-codes used by the NYPD are not the same as those used in the APCO system. For example, in the NYPD system, Code 10-13 means "Officer needs help," whereas in the APCO system "Officer needs help" is Code 10-33.
70:
APCO first proposed Morse code brevity codes in the June 1935 issue of The APCO Bulletin, which were adapted from the procedure symbols of the U.S. Navy, though these procedures were for communications in Morse code, not voice.
4226:
Indicates a unit is mechanically out of service. Example: "Aburn, transport 2341, out-of-service." Note, when repairs have been completed the following phrase should be used: "Aburn transport 2341, back in-service, available."
126:
The Ten
Signals were included in APCO Project Two (1967), "Public Safety Standard Operating Procedures Manual", published as study cards in APCO Project 4 (1973), "Ten Signal Cards", and then revised in APCO Project 14 (1974).
3818:
Personnel will NOT proceed with Code 5 details until the receiving unit requests some. The unit receiving a Code 5 will request the details when he is in a safe position to do so, which might not be until his backup arrives.
4128:
published a document, ICS Clear Text Guide, which was another attempt to create a replacement for Ten-codes. The list of code words was republished in the 1990 Montana Mutual Aid and Common
Frequencies document.
85:
transmitted in the text of the message as follows: John Brown 28-5-9-165 medium build brown eyes dark hair dark suit light hat Mich. 35 lic. W 2605 Ford S 35 blue red wheels 2345678 may go to
Indiana).
99:
began in 1937 to reduce use of speech on the radio at a time when police radio channels were limited. Credit for inventing the codes goes to
Charles "Charlie" Hopper, communications director for the
3777:
Informs all units to STANDBY – STOP TRANSMITTING. Do not transmit, except for emergency messages, while Code 1 is in effect. Dispatch shall announce, "Clear Code 1," when the condition is secured.
111:
bands. Experienced radio operators knew the first syllable of a transmission was frequently not understood because of quirks in early electronics technology. Radios in the 1930s were based on
5270:
3255:, 1970 edition, published by APCO. According to the report, the Clear Speech Procedure was to replace ten-codes in all Public Safety Department radio communication since January 28, 1972.
3797:
Indicates an EMERGENCY call. Red lights and siren are authorized. Proceed as quickly as possible with due regard for safety, and in compliance with the laws governing emergency vehicles.
55:
5177:
4348:
Term used to gain control of radio frequency to report an emergency. All other radio users will refrain from using that frequency until cleared for use by the communications center.
4716:
4628:
3251:, published a study comparing the APCO Ten-code with the proposed Clear Speech procedure. The study used standards for judgment of both communications procedures based on
4929:
3813:
Used when Wanted/Records checks are requested by an agent to alert the agent of a wanted felon, a person known to be dangerous or a person known to be mentally unstable.
4202:
Normally used by administrative or staff personnel to designate destinations. Enroute is NOT a substitute for responding. Example: "Redding, Chief 2400 enroute RO II."
5497:
4446:
availability statuses as well as operational messages. For example, "K1" means "proceeding to incident", while "K99" means "Structure fire, well involved". The
74:
In August 1935, the APCO Bulletin published a recommendation that the organization issue a handbook that described standard operating procedures, including:
5105:
4907:
4692:
239:
Often when an officer retires, a call to dispatch is made. The officer gives a 10-7 code (Out of service) and then a 10-42 code (ending tour of duty).
4600:
5262:
135:
Ten-codes, especially "10-4" (meaning "understood") first reached public recognition in the mid- to late-1950s through the popular television series
5148:
4768:
4235:
This means that the unit is operating, not in response to a dispatch. Example: "Fortuna, Engine 1283, in-service, fire prevention inspections."
3785:
Indicates an "urgent" call short of an "emergency" situation. A Code 2 call has priority over all other police activities except "emergencies".
3231:
also advises local agencies on how and why to transition to plain language, and their use is expressly forbidden in the nationally standardized
5033:
62:, but in 2006, due to the lack of standardization, the U.S. federal government recommended they be discontinued in favor of everyday language.
5487:
4194:
Used during dispatch – proceed to or proceeding to an incident. Example: "Engine 5176, respond ..." or "St. Helena, Engine 1375 responding."
91:
Other important records in accordance with the uniform crime reporting system sponsored by the
International Association of Chiefs of Police.
4450:
also use some K-codes, with completely unrelated meanings to those used by NZFS; Police code "K1" means "no further police action required".
5188:
4313:
Used with the amount of equipment needed to handle the incident. Example: "Susanville
Battalion 2212, can handle with units not at scene."
5050:
5002:
4951:
4747:
20:
5451:
4985:
4968:
4713:
5245:
4563:
4475:
operation, a Q code is often shorter, and provides codes standardized by meaning in all languages – essential for international
58:(APCO), allow brevity and standardization of message traffic. They have historically been widely used by law enforcement officers in
4501:
5393:
5373:
4794:
5457:
5088:
4835:
4653:
5221:
4621:
4149:
Used when signal received is not clear. In most cases, try to add the specific trouble. Example: "Unreadable, background noise."
5164:
4516:
3805:
Used to indicate that sufficient units have responded to a location, or that assistance is not needed, or is no longer needed.
4471:. They provide specific abbreviations for concepts related to aviation, shipping, RTTY, radiotelegraph, and amateur radio. In
5407:
4818:
5355:
4427:
4125:
3220:
5313:
168:, put phrases like "10-4" and "what's your twenty?" (10-20 for "where are you?") into common use in American English.
5477:
4521:
4506:
4892:
3215:
In the fall of 2005, responding to inter-organizational communication problems during the rescue operations after
3224:
137:
4402:, which used them habitually in radio communications and in the main title of the show. The best-known include:
4853:
4170:
Used to acknowledge message received. Unit radio identifier must also be used. Example: "Engine 2675, copies."
177:(1978), loosely based on McCall's song, further entrenched ten-codes in casual conversation, as does the movie
3259:
Replacement of ten-codes with the Clear Speech
Procedure (Public Safety Department, Lakewood, Colorado, 1972)
5020:"A NATIONAL TRAINING MANUAL AND PROCEDURAL GUIDE FOR POLICE AND PUBLIC SAFETY RADIO COMMUNICATIONS PERSONNEL"
4688:
4388:
5336:
4596:
4733:
107:. Hopper had been involved in radio for years and realized there was a need to abbreviate transmissions on
44:
used to represent common phrases in voice communication, particularly by US public safety officials and in
4256:
Normally used by communications center to direct units that are available to a station or other location.
5145:
4764:
4305:
Used by administrative or staff personnel to indicate they are available and on-call at their residence.
5242:
4930:"Son surprises father by acknowledging his last radio call before retiring from Arkansas Highway Police"
187:
4908:"Cop son gives father -- a fellow officer -- a heartfelt sendoff on last radio call before retirement"
4210:
Used to indicate that a unit is in a station. Example: "Morgan Hill, Engine 4577 in-quarters, Sunol."
4714:
http://28011b0082f55a9e1ec0-aecfa82ae628504f4b1d229bd9030ae1.r13.cf1.rackcdn.com/1940-01-p008-200.pdf
4378:
224:
3223:(FEMA) discouraged the use of ten-codes and other codes due to their wide variation in meaning. The
4531:
4439:
4430:": Mentally disturbed person (actually a reference to the California Welfare and Institutions Code)
228:
213:) takes its name from the New Zealand Police ten-code 10-7, which means "Unit has arrived at job".
4670:
4460:
3232:
192:
3856:
About 1979, APCO created the Phrase Word Brevity Code as a direct replacement for the Ten-code.
5472:
5057:
4526:
27:
5122:
4297:
Used when Units arrive at the scene of an incident. Example: "Perris, Engine 6183, at scene."
5389:
4384:
3227:'s SAFECOM program, established in response to communication problems experienced during the
179:
100:
3228:
4392:
4373:
Brevity codes other than the APCO 10-code are frequently used, and include several types:
8:
5492:
5370:
4790:
153:
45:
5019:
4839:
5482:
5295:
5217:
4447:
4066:
When transmitted, means that the following transmission must have immediate attention.
3248:
200:
173:
142:
5099:
4543:
3216:
227:
uses the radio code '10-1', which means an officer needs urgent help right away. The
104:
48:(CB) radio transmissions. The police version of ten-codes is officially known as the
2906:
What phone number shall we call to make station to station call to officer Nr. ...?
190:
have returned to public attention thanks to the popularity of the television series
4878:
4511:
2822:
Advise telephone Nr. ... your city that officer Nr. ... will not return this date.
4218:
Indicates a unit is not in-service, because there are no personnel to operate it.
3912:
Unit, vehicle or person is working but not necessarily "available" or "on radio."
5377:
5359:
5340:
5249:
5152:
4822:
4720:
1651:
Stopping suspicious vehicle (Give station complete description before stopping).
5414:
3744:
HELP – To be used when in danger and urgent assistance is needed.
4815:
4536:
4472:
4443:
3753:
Clear Speech status codes (Public Safety Department, Lakewood, Colorado, 1972)
217:
205:
81:
A simple code for service dispatches relating to corrections, repetitions, etc.
5352:
4022:
Unit is capable of being contacted by radio, but not necessarily "available."
5466:
5309:
4836:"Official Ten-Code List Association of Public Communications Officers (APCO)"
4564:"APCO Brevity Code to be "Voluntary Standard" In Florida Communications Plan"
4464:
220:
countdown program "What's your Twenty" is named after the code for location.
161:
59:
5458:
Official Ten-Code List Association of Public Communications Officers (APCO)
4468:
3829:
Exchange Forms will be completed at the scene to include the C. R. number.
2843:
Officer ... left this station for ... (Jefferson City) (Des Moines) at ...
1494:
157:
108:
41:
4408:
4381:
uses ten-codes, along with an additional set of eleven- and higher codes.
4368:
4011:
Unit is not capable of being contacted by radio, but may be "available."
3923:
Unit is in service ready to accept assignment, not necessarily by radio.
1169:
Trouble at station—unwelcome visitors—all units vicinity report at once.
112:
5243:
APCO position statement on Plain Speech in Public Safety Communications
5056:. Associated Public-Safety Communications Officers, Inc. Archived from
146:
4044:
Situation is under control when no further assistance is anticipated.
4476:
116:
4077:
Unit is chasing a vehicle and requires assistance from other units.
3253:
The Public Safety Communications Standard Operating Procedure Manual
26:"10-20" redirects here. For the EEG electrode placement system, see
4489:
countries, and like Q codes are standardized across languages.
56:
Association of Public-Safety Communications Officials-International
88:
A standard record system for logging the operation of the station.
54:
The codes, developed during 1937–1940 and expanded in 1974 by the
5333:
4398:
1738:
Tune to ... kcs. for test with mobile unit or emergency service.
165:
4734:"Codes And Signals - More Discussion On The Radio Code Problems"
4482:
4456:
2697:
The 80 series is reserved for assignment by nets for local use.
4854:"New York City (NY) Law Enforcement - the RadioReference Wiki"
3934:
Unit cannot accept another assignment, but may be "on radio."
2885:
Officer Nr. ... will be in ... if officer Nr. ... will be in.
2493:
Advise nature of fire (size, type, and contents of building)
5263:"Maine police dropping 10-code, switching to plain language"
3741:
AFFIRMATIVE – To be used when "yes" is needed
3020:
Your quality poor—transmitter apparently out of adjustment.
4486:
4435:
The New York Fire Department uses its own ten-code system.
3815:
A backup unit shall be dispatched Code 2 on all Code 5's.
3239:
increasingly being phased out in favor of plain language.
78:
A standard message form for use by all police departments.
19:"10-1" redirects here. For the FIFA World Cup match, see
4594:
3956:
You have been given clearance to transmit your message.
164:" (1975), depicting conversation among CB-communicating
5438:
letters is fewer characters and shorter code sequences.
3656:
Notify coroner (to be done by phone whenever possible)
2689:
Notify coroner (to be done by phone whenever possible)
627:
Out of service (Give location and/or telephone number)
149:
to answer a call and precede his response with "10-4".
5454:– The first official publication showing the 10-codes.
145:. Crawford would reach into his patrol car to use the
3989:
Stop transmitting and wait for further instructions.
3738:
ROGER – To be used as acknowledgement.
2930:
Request radio service man be sent to this station...
2798:
Have officer Nr. ... call this station by telephone.
3879:
Caution: dangerous condition is suspected to exist.
2774:
Reserve room with bath at hotel for officer Nr. ...
1226:
Can you obtain automobile registration information?
1013:
Complete present assignment as quickly as possible.
3095:Test intermittently with normal modulation for ...
16:
Brevity codes used by a variety of US professionals
3206:
5218:"NIMS Frequently Asked Questions | FEMA.gov"
5187:. Department of Homeland Security. Archived from
4932:. Tribune Media Wire. Fox 13 Now. 7 February 2019
4597:"Plain Talk Eases Police Radio Codes Off The Air"
2022:Auto accident, personal injuries, ambulance sent
5498:Telecommunications-related introductions in 1937
5464:
5296:"1990 Montana Mutual Aid and Common Frequencies"
5104:: CS1 maint: bot: original URL status unknown (
5034:"Public Safety Communication Aural Brevity Code"
2909:Advise phone number for station to station call
3122:Test continuously with tone modulation for ...
2966:Radio service man will be at your station ....
1816:Request permission to leave patrol ... for ...
4686:
4055:Call by telephone specified number or person.
2487:Proceed with traffic in sequence (busy here).
1711:Advise if Officer...available for radio call.
277:1955 (National Operating Procedure Committee)
4828:
4396:Code references as a result of the TV series
3945:Dispatcher is about to give lengthy message.
2993:Prepare for inspection (date) ... (time) ...
2864:Officer ... left this station for ... at ...
2726:... tower lights at this station burned out.
5431:
5089:"Ten Code Versus Clear Speech Communication"
2753:Officer Nr. ... will be at your station ...
337:Insubordination/Rogue Officer
234:
115:powered by a small motor-generator called a
5094:. Archived from the original on 2006-03-13.
4905:
4485:are used for military radio communications
3851:
1347:Does not conform to rules and regulations.
21:Hungary v El Salvador (1982 FIFA World Cup)
5167:. Megan Scott, asap (AP), 23 November 2005
4986:"Page Twelve The APCO Bulletin April 1940"
4906:Suarez Sang, Lucia I. (8 February 2019).
4680:
4502:Advanced Medical Priority Dispatch System
4207:In-quarters, with Station Name or Number
3247:In 1971, the Public Safety Department of
3242:
1648:Hurry, but do not use red light or siren
1525:Emergency traffic at this station—clear?
1121:Take no further action last information.
5155:. Tim Dees, Officer.com, 9 November 2005
4995:
3071:Test—no modulation—for frequency check.
5205:
4707:
4595:Heard on Morning Edition (2009-10-13).
4590:
4588:
4033:Unit is en route to assigned location.
3901:Unit, vehicle or person is not working
3837:Indicates "out of service – personal."
2912:Advise present telephone number of ...
5465:
5261:Mack, Sharon Kiley (January 1, 2010).
4517:List of international common standards
2382:Stations...carry this item (message).
1554:Trouble at station, assistance needed
1285:Request full registration information
294:(plain language to replace Ten Codes)
271:1939 First Published Set (17 signals)
5290:
5288:
5273:from the original on January 18, 2012
5211:Federal Emergency Management Agency.
5117:
5115:
5083:
5081:
5079:
5077:
3890:Radio signal is too weak to receive.
3044:Frequencies to be checked this date.
2334:Clear for item (message) assignment?
1282:Check full registration information.
1257:Request driver's license information
130:
5488:Law enforcement in the United States
5260:
4922:
4585:
4289:Is ____ Available for a Phone Call?
3788:– turn off the emergency equipment.
2232:Stand by for CW traffic on ... kcs.
2205:What is next item (message) number?
1954:Auto accident, property damage only
823:Advise weather and road conditions.
4899:
4748:"Proposed Revision Of "10" Signals"
4442:uses a system of "K-codes" to pass
4126:National Incident Management System
3221:Federal Emergency Management Agency
1376:Emergency basis, all squads, 10-11
1268:Drivers license information on ...
1265:License/Permit Information
837:Weather report/road report
298:Phrase Word Brevity Code (c. 1979)
231:TV show also uses '10-1' as well.
50:APCO Project 14 Aural Brevity Code.
13:
5285:
5112:
5074:
4695:from the original on 16 March 2016
4634:from the original on 16 March 2016
4453:Telegraph and teletype procedures
4088:Unit is going to stop a motorist.
3561:East bound green light out (etc.)
3465:Drivers License information on...
3191:Records indicate wanted or stolen
2208:What is your next message number?
1928:East bound green light out (etc.)
1837:Animal carcass in ... lane at ...
1670:Your Nr...delivered to addressee.
152:Ten-codes were adapted for use by
14:
5509:
5445:
5413:. CB Radio Source. Archived from
5343:The Unofficial Home Page of FDNY.
5022:. U.S.GOVT.PRINTING OFFICE. 1968.
4969:"The APCO Bulletin, January 1940"
4797:from the original on 18 June 2015
4771:from the original on 18 June 2015
4391:as early as the 1940s, and these
4119:
3967:Message received and understood.
3289:Unable to copy – change location
2460:Net message (State net traffic).
1288:Vehicle registration information
743:On minor detail, subject to call
480:Unable to copy - change location
472:Unable to copy - change location
242:
5396:from the original on 2013-02-07.
4522:Medical Priority Dispatch System
4507:Emergency service response codes
4362:
4000:Cancel your present assignment.
3640:ETA (Estimated time of arrival)
3235:, as is the use of other codes.
2969:Transmit on alternate frequency
2641:ETA (Estimated time of arrival)
2634:ETA (Estimated Time of Arrival)
1296:Registration information on ...
1144:Stand by until no interference.
1095:Call this station by telephone.
740:Out of service—subject to call.
274:1940 (APCO Standards Committee)
5452:The APCO Bulletin, January 1940
5400:
5382:
5364:
5346:
5327:
5316:from the original on 2015-11-26
5302:
5254:
5236:
5224:from the original on 2014-12-23
5215:. Retrieved on 2014-12-01 from
5213:NIMS Frequently Asked Questions
5170:
5158:
5139:
5043:
5026:
5012:
4978:
4961:
4944:
4885:
4871:
4846:
4809:
4783:
4757:
4622:"The APCO Bulletin (June 1935)"
4603:from the original on 2009-10-17
3473:Registration information on...
3225:Department of Homeland Security
3207:Replacement with plain language
1900:Traffic standard needs repairs
1717:Silent run - No light or siren
1629:Investigate suspicious vehicle
1528:Emergency traffic this station
1204:Report in person to (meet) ...
794:Officials or visitors present.
4740:
4726:
4687:James Careless (August 2006).
4663:
4646:
4614:
4556:
1879:Emergency road repairs needed
1172:Finished with last assignment
797:Visitors or officials present
1:
5312:. California Highway Patrol.
4893:"Illinois Police Radio Codes"
4549:
4389:Los Angeles Police Department
4052:Telephone (Tel. # or person)
2337:Clear for message assignment
2286:Prepare to make written copy
2256:Unable to copy phone—use CW.
1936:Accident and Vehicle Handling
1645:Station report—satisfactory.
1201:Operator or officer on duty?
1198:Do you have contact with...?
880:We have prisoner in custody.
602:Busy -Stand by unless urgent
334:Officer not following orders
304:Procedure and Officer Details
4765:"The Origin of The Ten Code"
4387:sections were in use by the
3457:Detaining subject, expedite
2888:Meet the officer at ______.
1998:Auto accident, wrecker sent
1260:Drivers license information
1240:Detaining subject, expedite
1232:Detaining subject, expedite
1229:Holding subject, rush reply
1019:Complete assignment quickly
862:Message/Information
826:Weather and road conditions
7:
4495:
4420:"417": Person with a weapon
4284:Vehicle Registration Check
4099:Help me quick (emergency).
3361:Weather report/road report
2313:Message for local delivery
1676:Urgent-Use light and siren
1508:... Units Needed (Specify)
1500:Chase, all squads stand by
1373:Is lie detector available?
523:Disregard last information
10:
5514:
5392:. Radio Wiki. 2012-06-07.
5123:"Phrase Word Brevity Code"
5051:"OFFICIAL TEN SIGNAL LIST"
4406:
4366:
3845:Assist a fire department.
3590:Private property, location
2825:If meeting ... advise ETA
2388:Clear to read net message
1982:Private property, location
1950:
1576:Confidential information.
1551:Clear for local dispatch?
1316:Check records for wanted.
1254:Any answer our number...?
562:Roger/Affirmative
188:New York Police Department
186:The ten-codes used by the
65:
25:
18:
4825:Dispatch Magazine online.
4423:"502": Intoxicated Driver
4379:California Highway Patrol
4320:
4263:
4242:
4156:
3860:Phrase Word Brevity Code
3145:
3097:
3056:
2999:Unnecessary use of radio
2995:
2949:
2800:
2759:
2731:
2728:
2695:
2513:
2499:
2443:
2408:
2319:
2217:
2188:
2175:Is ambulance on the way?
2139:
2007:
1934:
1885:
1812:
1761:
1723:
1687:
1586:
1510:
1411:
1406:
1403:
1400:
1346:
1330:
1146:
1131:
1097:
1023:
963:
958:
955:
952:
929:
915:
904:
879:
768:Dispatching too rapidly.
753:
727:
722:
696:
657:
623:
573:
530:
494:
468:
302:
256:
235:Police officer retirement
225:Chicago Police Department
5146:The End of the Ten-Code?
5003:"Standard "Ten Signals""
4532:Radiotelephony procedure
4440:New Zealand Fire Service
3852:Phrase Word Brevity Code
2679:Report progress on fire
2520:Report progress on fire
2430:Have you dispatched...?
2358:Clear for cancellation?
1673:Use red light and siren
1324:Check for wanted on ...
1313:Check record for wanted
1212:Meet ... or contact ...
1124:Report in person to ...
1039:Return to your station.
905:Pick up prisoner at ...
829:Weather and road report
720:Repeat, conditions bad.
229:Chicago P.D. (TV series)
5478:Emergency communication
4858:wiki.radioreference.com
4654:"Special APCO Bulletin"
4461:prosigns for Morse code
4336:Emergency Traffic Only
4302:Available at Residence
4274:Disregard Last Message
4261:What is your Location?
3481:Check for wanted on...
3233:Incident Command System
2361:Clear for cancellation
2340:Net message assignment
2259:Any answer our Nr. ...
2154:Is wrecker on the way?
2109:Intoxicated pedestrian
1744:Beginning tour of duty
1355:Danger/Caution
1237:Estimated Arrival Time
1067:What is your location?
545:Acknowledgement.
286:APCO Project 14 (1974)
95:The development of the
5178:"Plain Language Guide"
4689:"The End of 10-Codes?"
4527:NATO phonetic alphabet
4353:Resume Normal Traffic
3680:Alarm (type of alarm)
3243:Clear Speech Procedure
3198:Wanted/stolen
2979:Alarm (type of alarm)
2607:Fire equipment needed
2385:Clear for net message
2133:Hit and run—F, PI, PD
1579:Major crime, blockade
1293:Ownership Information
930:Pick up papers at ...
551:Acknowledgement
283:APCO Project 4 (1973)
280:APCO Project 2 (1967)
36:, officially known as
4671:"APCO Project Series"
4479:radio communications.
4407:Further information:
4385:California Penal Code
4326:Report on Conditions
4133:ICS Clear Text Guide
3978:Repeat your message.
3712:Check traffic signal
3449:Meet...or contact...
3170:Prison or jail break
3156:Check traffic signal
2412:Dispatch information
2364:Message cancellation
2067:Livestock on highway
2043:Auto accident, fatal
1789:Take school crossing
1350:Illegal use of radio
1209:Report to (Meet) ...
1180:Assignment Completed
1175:Assignment completed
180:Smokey and the Bandit
101:Illinois State Police
5334:F.D.N.Y. Radio Codes
4879:"What's Your Twenty"
4191:Respond, Responding
3704:Prisoner in custody
3229:September 11 attacks
3219:, the United States
3108:Prisoner in custody
2655:Set up command post
2190:Net Message Handling
1768:Ending tour of duty
1656:Traffic stop on ...
1332:Emergency or Unusual
1103:Call (...) by Phone
834:Existing Conditions
4331:Fire under Control
4318:Burning Operations
4269:Call ____ by Phone
4134:
3997:Disregard (Recall)
3975:Say Again (Repeat)
3861:
3754:
3648:Request assistance
3529:Traffic stop on...
3260:
2933:Radio transmission
2777:Reserve hotel room
2665:Request Assistance
2238:Personnel in area.
2088:Intoxicated driver
1957:Accident—F, PI, PD
1918:Hourly report mark
1765:Crew change at ...
520:Stop transmitting.
5376:2016-04-19 at the
5358:2016-05-10 at the
5339:2010-09-15 at the
5248:2012-05-09 at the
5151:2009-07-22 at the
4821:2015-03-20 at the
4719:2017-08-10 at the
4448:New Zealand Police
4417:"415": Disturbance
4345:Emergency Traffic
4162:Stop Transmitting
4132:
3859:
3752:
3720:Prison/jail break
3696:Parking complaint
3584:No injury reported
3575:PD=Property Damage
3297:Stop transmitting
3258:
3249:Lakewood, Colorado
3177:Prison/jail break
3030:Parking complaint
2463:Fire, phone alarm
2211:Squad in vicinity
1976:No injury reported
1921:Traffic light out
1741:Car change at ...
1623:Operator on duty?
1582:Major crime alert
1379:Crime in progress
1310:Check for wanted.
1098:Call ... by phone
888:Message Delivered
883:Civil disturbance
857:Report of prowler
851:Convoy or escort.
746:Fight in progress
531:Stop Transmitting
526:Stop transmitting
469:Receiving poorly.
201:reality television
143:Broderick Crawford
131:In popular culture
28:10–20 system (EEG)
5371:"Fire radio codes
5267:Bangor Daily News
4544:Spelling alphabet
4360:
4359:
4356:Self-explanatory
4321:Self-explanatory
4264:Self-explanatory
4243:Self-explanatory
4157:Self-explanatory
4117:
4116:
3964:Roger (Received)
3849:
3848:
3750:
3749:
3688:Pick up prisoner
3600:Drunk pedestrian
3272:(Procedure Word)
3217:Hurricane Katrina
3204:
3203:
3006:Pick up prisoner
2433:Message received
2406:Repeat dispatch.
2262:Reply to message
2178:Convoy or escort
2116:Drunk pedestrian
2025:Ambulance needed
1152:Arrived at Scene
1147:Arrived at scene
1016:Anything for us?
933:Meet complainant
913:Reply to Message
908:Domestic trouble
854:Convoy or escort
556:Affirmative (Ok)
548:Message received
105:Pesotum, Illinois
103:, District 10 in
5505:
5439:
5435:
5429:
5428:
5426:
5425:
5419:
5412:
5404:
5398:
5397:
5386:
5380:
5368:
5362:
5350:
5344:
5331:
5325:
5324:
5322:
5321:
5306:
5300:
5299:
5292:
5283:
5282:
5280:
5278:
5258:
5252:
5240:
5234:
5232:
5230:
5229:
5209:
5203:
5202:
5200:
5199:
5193:
5182:
5174:
5168:
5162:
5156:
5143:
5137:
5136:
5134:
5133:
5127:
5119:
5110:
5109:
5103:
5095:
5093:
5085:
5072:
5071:
5069:
5068:
5062:
5055:
5047:
5041:
5040:
5038:
5030:
5024:
5023:
5016:
5010:
5009:
5007:
4999:
4993:
4992:
4990:
4982:
4976:
4975:
4973:
4965:
4959:
4958:
4956:
4952:"Happy Birthday"
4948:
4942:
4941:
4939:
4937:
4926:
4920:
4919:
4917:
4915:
4903:
4897:
4896:
4889:
4883:
4882:
4875:
4869:
4868:
4866:
4864:
4850:
4844:
4843:
4838:. Archived from
4832:
4826:
4816:9-Code, 10-Code.
4813:
4807:
4806:
4804:
4802:
4787:
4781:
4780:
4778:
4776:
4761:
4755:
4754:
4752:
4744:
4738:
4737:
4730:
4724:
4711:
4705:
4704:
4702:
4700:
4684:
4678:
4677:
4675:
4667:
4661:
4660:
4658:
4650:
4644:
4643:
4641:
4639:
4633:
4626:
4618:
4612:
4611:
4609:
4608:
4592:
4583:
4582:
4580:
4578:
4568:
4560:
4512:List of CB slang
4467:, aviation, and
4405:"187": Homicide
4135:
4131:
3942:Prepare to Copy
3868:English Meaning
3862:
3858:
3755:
3751:
3608:Prepare to copy
3553:Assist motorist
3261:
3257:
3047:Frequency check
2780:Reserve lodging
2658:Need assistance
2586:In contact with
2293:Prepare to copy
1964:Traffic (F, PD)
1865:Assist motorist
1858:Assist motorist
1823:Request for ...
1042:Nothing for you
868:Prepare to Copy
805:Stand By (Stop)
800:Stand by (stop)
771:Stay in service
624:Out of service.
495:Receiving well.
331:Corrupt Officer
247:
246:
199:The New Zealand
97:APCO Ten Signals
5513:
5512:
5508:
5507:
5506:
5504:
5503:
5502:
5463:
5462:
5448:
5443:
5442:
5436:
5432:
5423:
5421:
5417:
5410:
5406:
5405:
5401:
5390:"Police K code"
5388:
5387:
5383:
5378:Wayback Machine
5369:
5365:
5360:Wayback Machine
5351:
5347:
5341:Wayback Machine
5332:
5328:
5319:
5317:
5308:
5307:
5303:
5294:
5293:
5286:
5276:
5274:
5259:
5255:
5250:Wayback Machine
5241:
5237:
5227:
5225:
5216:
5210:
5206:
5197:
5195:
5191:
5185:SAFECOM program
5180:
5176:
5175:
5171:
5163:
5159:
5153:Wayback Machine
5144:
5140:
5131:
5129:
5125:
5121:
5120:
5113:
5097:
5096:
5091:
5087:
5086:
5075:
5066:
5064:
5060:
5053:
5049:
5048:
5044:
5036:
5032:
5031:
5027:
5018:
5017:
5013:
5005:
5001:
5000:
4996:
4988:
4984:
4983:
4979:
4971:
4967:
4966:
4962:
4954:
4950:
4949:
4945:
4935:
4933:
4928:
4927:
4923:
4913:
4911:
4904:
4900:
4891:
4890:
4886:
4877:
4876:
4872:
4862:
4860:
4852:
4851:
4847:
4834:
4833:
4829:
4823:Wayback Machine
4814:
4810:
4800:
4798:
4791:"APCO Projects"
4789:
4788:
4784:
4774:
4772:
4763:
4762:
4758:
4750:
4746:
4745:
4741:
4732:
4731:
4727:
4721:Wayback Machine
4712:
4708:
4698:
4696:
4685:
4681:
4673:
4669:
4668:
4664:
4656:
4652:
4651:
4647:
4637:
4635:
4631:
4624:
4620:
4619:
4615:
4606:
4604:
4593:
4586:
4576:
4574:
4566:
4562:
4561:
4557:
4552:
4498:
4411:
4371:
4365:
4223:Out-Of-Service
4154:Loud and Clear
4138:Procedure Word
4122:
3898:Out of Service
3854:
3545:Request for...
3245:
3209:
3125:Mental subject
3074:Give me a test
2702:Personal Favors
2682:Notify coroner
2157:Direct traffic
2085:Drunken driver
2001:Wrecker needed
638:Out of Service
632:Out of Service
599:Busy, stand by
245:
237:
216:The syndicated
133:
68:
31:
24:
17:
12:
11:
5:
5511:
5501:
5500:
5495:
5490:
5485:
5480:
5475:
5461:
5460:
5455:
5447:
5446:External links
5444:
5441:
5440:
5430:
5399:
5381:
5363:
5345:
5326:
5310:"CHP Glossary"
5301:
5284:
5253:
5235:
5204:
5169:
5157:
5138:
5111:
5073:
5042:
5025:
5011:
4994:
4977:
4960:
4943:
4921:
4898:
4884:
4870:
4845:
4842:on 2007-10-13.
4827:
4808:
4782:
4756:
4739:
4725:
4706:
4679:
4662:
4659:. August 1935.
4645:
4613:
4584:
4573:. October 1975
4554:
4553:
4551:
4548:
4547:
4546:
4541:
4540:
4539:
4537:Procedure word
4529:
4524:
4519:
4514:
4509:
4504:
4497:
4494:
4493:
4492:
4491:
4490:
4480:
4473:radiotelegraph
4451:
4444:fire appliance
4436:
4433:
4432:
4431:
4424:
4421:
4418:
4415:
4414:"211": Robbery
4412:
4382:
4367:Main article:
4364:
4361:
4358:
4357:
4354:
4350:
4349:
4346:
4342:
4341:
4337:
4333:
4332:
4328:
4327:
4323:
4322:
4319:
4315:
4314:
4311:
4307:
4306:
4303:
4299:
4298:
4295:
4291:
4290:
4286:
4285:
4281:
4280:
4276:
4275:
4271:
4270:
4266:
4265:
4262:
4258:
4257:
4254:
4250:
4249:
4245:
4244:
4241:
4237:
4236:
4233:
4229:
4228:
4224:
4220:
4219:
4216:
4212:
4211:
4208:
4204:
4203:
4200:
4196:
4195:
4192:
4188:
4187:
4184:
4180:
4179:
4176:
4172:
4171:
4168:
4164:
4163:
4159:
4158:
4155:
4151:
4150:
4147:
4143:
4142:
4139:
4121:
4120:ICS Clear Text
4118:
4115:
4114:
4111:
4108:
4104:
4103:
4100:
4097:
4093:
4092:
4089:
4086:
4082:
4081:
4078:
4075:
4071:
4070:
4067:
4064:
4060:
4059:
4056:
4053:
4049:
4048:
4045:
4042:
4041:Under Control
4038:
4037:
4034:
4031:
4027:
4026:
4023:
4020:
4016:
4015:
4012:
4009:
4005:
4004:
4001:
3998:
3994:
3993:
3990:
3987:
3983:
3982:
3979:
3976:
3972:
3971:
3968:
3965:
3961:
3960:
3957:
3954:
3950:
3949:
3946:
3943:
3939:
3938:
3935:
3932:
3931:Not Available
3928:
3927:
3924:
3921:
3917:
3916:
3913:
3910:
3906:
3905:
3902:
3899:
3895:
3894:
3891:
3888:
3884:
3883:
3880:
3877:
3873:
3872:
3871:APCO TEN CODE
3869:
3866:
3853:
3850:
3847:
3846:
3843:
3839:
3838:
3835:
3831:
3830:
3826:
3822:
3821:
3811:
3807:
3806:
3803:
3799:
3798:
3795:
3791:
3790:
3783:
3779:
3778:
3775:
3771:
3770:
3769:Echo response
3767:
3763:
3762:
3759:
3748:
3747:
3746:
3745:
3742:
3739:
3734:
3730:
3729:
3728:Wanted/stolen
3726:
3722:
3721:
3718:
3714:
3713:
3710:
3706:
3705:
3702:
3698:
3697:
3694:
3690:
3689:
3686:
3682:
3681:
3678:
3674:
3673:
3670:
3666:
3665:
3662:
3658:
3657:
3654:
3650:
3649:
3646:
3642:
3641:
3638:
3634:
3633:
3630:
3626:
3625:
3622:
3618:
3617:
3614:
3610:
3609:
3606:
3602:
3601:
3598:
3594:
3593:
3592:
3591:
3588:
3585:
3582:
3579:
3576:
3573:
3567:
3563:
3562:
3559:
3555:
3554:
3551:
3547:
3546:
3543:
3539:
3538:
3535:
3531:
3530:
3527:
3523:
3522:
3519:
3515:
3514:
3511:
3507:
3506:
3503:
3499:
3498:
3495:
3491:
3490:
3487:
3483:
3482:
3479:
3475:
3474:
3471:
3467:
3466:
3463:
3459:
3458:
3455:
3451:
3450:
3447:
3443:
3442:
3439:
3435:
3434:
3431:
3427:
3426:
3423:
3419:
3418:
3415:
3411:
3410:
3407:
3403:
3402:
3399:
3395:
3394:
3391:
3387:
3386:
3383:
3379:
3378:
3375:
3371:
3370:
3367:
3363:
3362:
3359:
3355:
3354:
3351:
3347:
3346:
3343:
3339:
3338:
3335:
3331:
3330:
3327:
3323:
3322:
3319:
3315:
3314:
3311:
3307:
3306:
3303:
3299:
3298:
3295:
3291:
3290:
3287:
3283:
3282:
3279:
3275:
3274:
3268:
3244:
3241:
3208:
3205:
3202:
3201:
3199:
3196:
3194:
3192:
3189:
3187:
3185:
3181:
3180:
3178:
3175:
3173:
3171:
3168:
3166:
3164:
3160:
3159:
3157:
3154:
3152:
3150:
3147:
3144:
3142:
3140:
3136:
3135:
3133:
3130:
3128:
3126:
3123:
3120:
3118:
3116:
3112:
3111:
3109:
3106:
3104:
3102:
3099:
3096:
3093:
3091:
3089:
3085:
3084:
3082:
3080:
3078:
3075:
3072:
3069:
3067:
3065:
3061:
3060:
3058:
3055:
3053:
3051:
3048:
3045:
3042:
3040:
3038:
3034:
3033:
3031:
3028:
3026:
3024:
3021:
3018:
3016:
3014:
3010:
3009:
3007:
3004:
3002:
3000:
2997:
2994:
2991:
2989:
2987:
2983:
2982:
2980:
2977:
2975:
2973:
2970:
2967:
2964:
2962:
2960:
2956:
2955:
2953:
2947:
2946:
2944:
2941:
2939:
2937:
2934:
2931:
2928:
2926:
2924:
2920:
2919:
2917:
2915:
2913:
2910:
2907:
2904:
2902:
2900:
2896:
2895:
2893:
2891:
2889:
2886:
2883:
2881:
2879:
2875:
2874:
2872:
2870:
2868:
2865:
2862:
2860:
2858:
2854:
2853:
2851:
2849:
2847:
2844:
2841:
2839:
2837:
2833:
2832:
2830:
2828:
2826:
2823:
2820:
2818:
2816:
2812:
2811:
2809:
2807:
2805:
2802:
2799:
2796:
2794:
2792:
2788:
2787:
2785:
2783:
2781:
2778:
2775:
2772:
2770:
2768:
2764:
2763:
2761:
2758:
2756:
2754:
2751:
2749:
2747:
2743:
2742:
2740:
2737:
2735:
2733:
2730:
2727:
2724:
2722:
2720:
2716:
2715:
2713:
2711:
2709:
2707:
2704:
2699:
2693:
2692:
2690:
2687:
2685:
2683:
2680:
2677:
2675:
2673:
2669:
2668:
2666:
2663:
2661:
2659:
2656:
2653:
2651:
2649:
2645:
2644:
2642:
2639:
2637:
2635:
2632:
2629:
2627:
2625:
2621:
2620:
2618:
2615:
2613:
2611:
2608:
2605:
2603:
2601:
2597:
2596:
2594:
2591:
2589:
2587:
2584:
2581:
2579:
2577:
2573:
2572:
2570:
2567:
2565:
2563:
2560:
2557:
2555:
2553:
2549:
2548:
2546:
2544:
2542:
2539:
2536:
2534:
2532:
2528:
2527:
2525:
2523:
2521:
2518:
2515:
2512:
2510:
2508:
2504:
2503:
2501:
2498:
2496:
2494:
2491:
2488:
2485:
2483:
2481:
2477:
2476:
2474:
2471:
2469:
2467:
2464:
2461:
2458:
2456:
2454:
2450:
2449:
2447:
2441:
2440:
2438:
2436:
2434:
2431:
2428:
2426:
2424:
2420:
2419:
2417:
2415:
2413:
2410:
2407:
2404:
2402:
2400:
2396:
2395:
2393:
2391:
2389:
2386:
2383:
2380:
2378:
2376:
2372:
2371:
2369:
2367:
2365:
2362:
2359:
2356:
2354:
2352:
2348:
2347:
2345:
2343:
2341:
2338:
2335:
2332:
2330:
2328:
2324:
2323:
2321:
2318:
2316:
2314:
2311:
2308:
2305:
2303:
2301:
2297:
2296:
2294:
2291:
2289:
2287:
2284:
2281:
2280:Net directed.
2278:
2276:
2274:
2270:
2269:
2267:
2265:
2263:
2260:
2257:
2254:
2252:
2250:
2246:
2245:
2243:
2241:
2239:
2236:
2233:
2230:
2228:
2226:
2222:
2221:
2219:
2216:
2214:
2212:
2209:
2206:
2203:
2201:
2199:
2195:
2194:
2192:
2186:
2185:
2183:
2181:
2179:
2176:
2173:
2171:
2169:
2165:
2164:
2162:
2160:
2158:
2155:
2152:
2150:
2148:
2144:
2143:
2141:
2138:
2136:
2134:
2131:
2128:
2126:
2124:
2120:
2119:
2117:
2114:
2112:
2110:
2107:
2104:
2102:
2100:
2096:
2095:
2093:
2091:
2089:
2086:
2083:
2081:
2079:
2075:
2074:
2072:
2070:
2068:
2065:
2062:
2060:
2058:
2054:
2053:
2051:
2049:
2047:
2044:
2041:
2039:
2037:
2033:
2032:
2030:
2028:
2026:
2023:
2020:
2018:
2016:
2012:
2011:
2009:
2006:
2004:
2002:
1999:
1996:
1994:
1992:
1988:
1987:
1985:
1984:
1983:
1980:
1977:
1974:
1971:
1962:
1960:
1958:
1955:
1952:
1949:
1947:
1945:
1941:
1940:
1938:
1932:
1931:
1929:
1926:
1924:
1922:
1919:
1916:
1914:
1912:
1908:
1907:
1905:
1903:
1901:
1898:
1896:
1894:
1890:
1889:
1887:
1884:
1882:
1880:
1877:
1875:
1873:
1869:
1868:
1866:
1863:
1861:
1859:
1856:
1854:
1852:
1848:
1847:
1845:
1842:
1840:
1838:
1835:
1833:
1831:
1827:
1826:
1824:
1821:
1819:
1817:
1814:
1811:
1809:
1807:
1803:
1802:
1800:
1797:
1795:
1793:
1790:
1787:
1785:
1783:
1779:
1778:
1776:
1773:
1771:
1769:
1766:
1763:
1760:
1758:
1756:
1752:
1751:
1749:
1747:
1745:
1742:
1739:
1736:
1734:
1732:
1728:
1727:
1725:
1722:
1720:
1718:
1715:
1712:
1709:
1707:
1705:
1701:
1700:
1698:
1696:
1691:
1685:
1684:
1682:
1679:
1677:
1674:
1671:
1668:
1666:
1664:
1660:
1659:
1657:
1654:
1652:
1649:
1646:
1643:
1641:
1639:
1635:
1634:
1632:
1630:
1627:
1624:
1621:
1619:
1617:
1613:
1612:
1610:
1608:
1605:
1602:
1601:Correct time?
1599:
1597:
1595:
1591:
1590:
1588:
1585:
1583:
1580:
1577:
1574:
1572:
1570:
1566:
1565:
1563:
1560:
1558:
1555:
1552:
1549:
1547:
1545:
1541:
1540:
1537:
1536:Help Me Quick
1534:
1532:
1529:
1526:
1523:
1521:
1519:
1515:
1514:
1512:
1509:
1506:
1504:
1501:
1498:
1491:
1489:
1487:
1483:
1482:
1480:
1477:
1475:
1473:
1471:
1467:
1466:
1464:
1461:
1459:
1457:
1455:
1451:
1450:
1448:
1445:
1443:
1441:
1439:
1435:
1434:
1432:
1429:
1427:
1425:
1423:
1419:
1418:
1416:
1413:
1410:
1408:
1405:
1402:
1399:
1397:
1395:
1391:
1390:
1388:
1385:
1382:
1380:
1377:
1374:
1371:
1369:
1367:
1363:
1362:
1359:
1356:
1353:
1351:
1348:
1345:
1343:
1341:
1337:
1336:
1334:
1328:
1327:
1325:
1322:
1321:Records Check
1319:
1317:
1314:
1311:
1308:
1306:
1304:
1300:
1299:
1297:
1294:
1291:
1289:
1286:
1283:
1280:
1278:
1276:
1272:
1271:
1269:
1266:
1263:
1261:
1258:
1255:
1252:
1250:
1248:
1244:
1243:
1241:
1238:
1235:
1233:
1230:
1227:
1224:
1222:
1220:
1216:
1215:
1213:
1210:
1207:
1205:
1202:
1199:
1196:
1194:
1192:
1188:
1187:
1184:
1181:
1178:
1176:
1173:
1170:
1167:
1165:
1163:
1159:
1158:
1156:
1153:
1150:
1148:
1145:
1142:
1140:
1138:
1134:
1133:
1130:
1128:
1125:
1122:
1119:
1117:
1115:
1111:
1110:
1107:
1104:
1101:
1099:
1096:
1093:
1091:
1089:
1085:
1084:
1082:
1079:
1076:
1074:
1071:
1068:
1065:
1063:
1061:
1057:
1056:
1054:
1053:Return to ...
1051:
1048:
1046:
1045:Return to ...
1043:
1040:
1037:
1035:
1033:
1029:
1028:
1025:
1022:
1020:
1017:
1014:
1011:
1009:
1007:
1003:
1002:
1000:
997:
995:
993:
991:
987:
986:
984:
981:
979:
977:
975:
971:
970:
968:
965:
962:
960:
957:
954:
951:
949:
947:
943:
942:
939:
936:
934:
931:
928:
926:
924:
920:
919:
917:
914:
911:
909:
906:
903:
901:
899:
895:
894:
892:
889:
886:
884:
881:
878:
876:
874:
870:
869:
866:
863:
860:
858:
855:
852:
849:
847:
845:
841:
840:
838:
835:
832:
830:
827:
824:
821:
819:
817:
813:
812:
809:
806:
803:
801:
798:
795:
792:
790:
788:
784:
783:
780:
777:
775:
772:
769:
766:
764:
762:
758:
757:
755:
752:
749:
747:
744:
741:
738:
736:
734:
730:
729:
726:
724:
721:
718:
716:
714:
710:
709:
706:
703:
700:
698:
695:
693:
691:
687:
686:
683:
681:
679:
677:
675:
673:
671:
669:
665:
664:
663:Not Available
661:
659:
656:
654:
652:
650:
648:
646:
644:
640:
639:
636:
633:
630:
628:
625:
622:
620:
618:
614:
613:
611:
608:
605:
603:
600:
597:
594:
592:
590:
586:
585:
583:
580:
577:
575:
572:
570:
568:
564:
563:
560:
557:
554:
552:
549:
546:
543:
541:
539:
535:
534:
532:
529:
527:
524:
521:
518:
516:
514:
510:
509:
507:
504:
501:
499:
496:
493:
491:
489:
485:
484:
481:
478:
475:
473:
470:
467:
465:
463:
459:
458:
456:
453:
450:
448:
445:
442:
439:
437:
435:
431:
430:
427:
425:
423:
421:
419:
417:
415:
413:
411:
408:
407:
404:
402:
400:
398:
396:
394:
392:
390:
388:
385:
384:
383:Under Control
381:
379:
377:
375:
373:
371:
369:
367:
365:
362:
361:
358:
356:
354:
352:
350:
348:
346:
344:
342:
339:
338:
335:
332:
329:
327:
324:
321:
318:
315:
313:
309:
308:
306:
300:
299:
296:
287:
284:
281:
278:
275:
272:
269:
266:
263:
262:
260:
258:
255:
253:
251:
244:
243:Signals by era
241:
236:
233:
218:internet radio
206:Ten 7 Aotearoa
138:Highway Patrol
132:
129:
93:
92:
89:
86:
82:
79:
67:
64:
15:
9:
6:
4:
3:
2:
5510:
5499:
5496:
5494:
5491:
5489:
5486:
5484:
5481:
5479:
5476:
5474:
5473:Brevity codes
5471:
5470:
5468:
5459:
5456:
5453:
5450:
5449:
5434:
5420:on 2014-08-14
5416:
5409:
5403:
5395:
5391:
5385:
5379:
5375:
5372:
5367:
5361:
5357:
5354:
5349:
5342:
5338:
5335:
5330:
5315:
5311:
5305:
5297:
5291:
5289:
5272:
5268:
5264:
5257:
5251:
5247:
5244:
5239:
5223:
5219:
5214:
5208:
5194:on 2010-05-27
5190:
5186:
5179:
5173:
5166:
5165:10-4 no more?
5161:
5154:
5150:
5147:
5142:
5124:
5118:
5116:
5107:
5101:
5090:
5084:
5082:
5080:
5078:
5063:on 2017-12-01
5059:
5052:
5046:
5035:
5029:
5021:
5015:
5004:
4998:
4987:
4981:
4970:
4964:
4953:
4947:
4931:
4925:
4909:
4902:
4894:
4888:
4880:
4874:
4859:
4855:
4849:
4841:
4837:
4831:
4824:
4820:
4817:
4812:
4796:
4792:
4786:
4770:
4766:
4760:
4749:
4743:
4735:
4729:
4722:
4718:
4715:
4710:
4694:
4690:
4683:
4672:
4666:
4655:
4649:
4630:
4623:
4617:
4602:
4598:
4591:
4589:
4572:
4565:
4559:
4555:
4545:
4542:
4538:
4535:
4534:
4533:
4530:
4528:
4525:
4523:
4520:
4518:
4515:
4513:
4510:
4508:
4505:
4503:
4500:
4499:
4488:
4484:
4481:
4478:
4474:
4470:
4466:
4465:amateur radio
4462:
4458:
4455:
4454:
4452:
4449:
4445:
4441:
4437:
4434:
4429:
4425:
4422:
4419:
4416:
4413:
4410:
4404:
4403:
4401:
4400:
4394:
4390:
4386:
4383:
4380:
4376:
4375:
4374:
4370:
4363:Related codes
4355:
4352:
4351:
4347:
4344:
4343:
4338:
4335:
4334:
4330:
4329:
4325:
4324:
4317:
4316:
4312:
4309:
4308:
4304:
4301:
4300:
4296:
4293:
4292:
4288:
4287:
4283:
4282:
4278:
4277:
4273:
4272:
4268:
4267:
4260:
4259:
4255:
4252:
4251:
4247:
4246:
4239:
4238:
4234:
4231:
4230:
4225:
4222:
4221:
4217:
4214:
4213:
4209:
4206:
4205:
4201:
4198:
4197:
4193:
4190:
4189:
4185:
4182:
4181:
4177:
4174:
4173:
4169:
4167:Copy, Copies
4166:
4165:
4161:
4160:
4153:
4152:
4148:
4145:
4144:
4140:
4137:
4136:
4130:
4127:
4124:In 1980, the
4112:
4109:
4106:
4105:
4101:
4098:
4096:Help Officer
4095:
4094:
4090:
4087:
4085:Traffic Stop
4084:
4083:
4079:
4076:
4073:
4072:
4068:
4065:
4062:
4061:
4057:
4054:
4051:
4050:
4046:
4043:
4040:
4039:
4035:
4032:
4029:
4028:
4024:
4021:
4018:
4017:
4013:
4010:
4007:
4006:
4002:
3999:
3996:
3995:
3991:
3988:
3985:
3984:
3980:
3977:
3974:
3973:
3969:
3966:
3963:
3962:
3958:
3955:
3952:
3951:
3947:
3944:
3941:
3940:
3936:
3933:
3930:
3929:
3925:
3922:
3919:
3918:
3914:
3911:
3908:
3907:
3903:
3900:
3897:
3896:
3892:
3889:
3886:
3885:
3881:
3878:
3875:
3874:
3870:
3867:
3864:
3863:
3857:
3844:
3841:
3840:
3836:
3833:
3832:
3827:
3824:
3823:
3820:
3816:
3812:
3809:
3808:
3804:
3801:
3800:
3796:
3793:
3792:
3789:
3784:
3781:
3780:
3776:
3773:
3772:
3768:
3765:
3764:
3760:
3757:
3756:
3743:
3740:
3737:
3736:
3735:
3732:
3731:
3727:
3724:
3723:
3719:
3716:
3715:
3711:
3708:
3707:
3703:
3700:
3699:
3695:
3692:
3691:
3687:
3684:
3683:
3679:
3676:
3675:
3671:
3668:
3667:
3663:
3660:
3659:
3655:
3652:
3651:
3647:
3644:
3643:
3639:
3636:
3635:
3631:
3628:
3627:
3623:
3620:
3619:
3615:
3612:
3611:
3607:
3604:
3603:
3599:
3596:
3595:
3589:
3586:
3583:
3580:
3577:
3574:
3571:
3570:
3568:
3565:
3564:
3560:
3557:
3556:
3552:
3549:
3548:
3544:
3541:
3540:
3536:
3533:
3532:
3528:
3525:
3524:
3520:
3517:
3516:
3512:
3509:
3508:
3504:
3501:
3500:
3496:
3493:
3492:
3488:
3485:
3484:
3480:
3477:
3476:
3472:
3469:
3468:
3464:
3461:
3460:
3456:
3453:
3452:
3448:
3445:
3444:
3440:
3437:
3436:
3432:
3429:
3428:
3424:
3421:
3420:
3416:
3413:
3412:
3409:Return to...
3408:
3405:
3404:
3400:
3397:
3396:
3392:
3389:
3388:
3384:
3381:
3380:
3376:
3373:
3372:
3368:
3365:
3364:
3360:
3357:
3356:
3352:
3349:
3348:
3344:
3341:
3340:
3336:
3333:
3332:
3328:
3325:
3324:
3320:
3317:
3316:
3312:
3309:
3308:
3304:
3301:
3300:
3296:
3293:
3292:
3288:
3285:
3284:
3280:
3277:
3276:
3273:
3269:
3267:
3263:
3262:
3256:
3254:
3250:
3240:
3236:
3234:
3230:
3226:
3222:
3218:
3213:
3200:
3197:
3195:
3193:
3190:
3188:
3186:
3183:
3182:
3179:
3176:
3174:
3172:
3169:
3167:
3165:
3162:
3161:
3158:
3155:
3153:
3151:
3148:
3143:
3141:
3138:
3137:
3134:
3131:
3129:
3127:
3124:
3121:
3119:
3117:
3114:
3113:
3110:
3107:
3105:
3103:
3100:
3094:
3092:
3090:
3087:
3086:
3083:
3081:
3079:
3076:
3073:
3070:
3068:
3066:
3063:
3062:
3059:
3054:
3052:
3049:
3046:
3043:
3041:
3039:
3036:
3035:
3032:
3029:
3027:
3025:
3022:
3019:
3017:
3015:
3012:
3011:
3008:
3005:
3003:
3001:
2998:
2992:
2990:
2988:
2985:
2984:
2981:
2978:
2976:
2974:
2971:
2968:
2965:
2963:
2961:
2958:
2957:
2954:
2952:
2948:
2945:
2942:
2940:
2938:
2935:
2932:
2929:
2927:
2925:
2922:
2921:
2918:
2916:
2914:
2911:
2908:
2905:
2903:
2901:
2898:
2897:
2894:
2892:
2890:
2887:
2884:
2882:
2880:
2877:
2876:
2873:
2871:
2869:
2866:
2863:
2861:
2859:
2856:
2855:
2852:
2850:
2848:
2846:Will be late
2845:
2842:
2840:
2838:
2835:
2834:
2831:
2829:
2827:
2824:
2821:
2819:
2817:
2814:
2813:
2810:
2808:
2806:
2803:
2797:
2795:
2793:
2790:
2789:
2786:
2784:
2782:
2779:
2776:
2773:
2771:
2769:
2766:
2765:
2762:
2757:
2755:
2752:
2750:
2748:
2745:
2744:
2741:
2738:
2736:
2734:
2725:
2723:
2721:
2718:
2717:
2714:
2712:
2710:
2708:
2705:
2703:
2700:
2698:
2694:
2691:
2688:
2686:
2684:
2681:
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2667:
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2657:
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2647:
2646:
2643:
2640:
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2636:
2633:
2630:
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2623:
2622:
2619:
2617:En route ...
2616:
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2609:
2606:
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2599:
2598:
2595:
2592:
2590:
2588:
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2574:
2571:
2568:
2566:
2564:
2561:
2559:Fourth alarm
2558:
2556:
2554:
2551:
2550:
2547:
2545:
2543:
2541:Smoke report
2540:
2537:
2535:
2533:
2530:
2529:
2526:
2524:
2522:
2519:
2517:Second alarm
2516:
2511:
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2497:
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2240:
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2200:
2197:
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2177:
2174:
2172:
2170:
2167:
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2159:
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2137:
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2101:
2098:
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2087:
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2082:
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2077:
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2073:
2071:
2069:
2066:
2063:
2061:
2059:
2056:
2055:
2052:
2050:
2048:
2046:Road blocked
2045:
2042:
2040:
2038:
2035:
2034:
2031:
2029:
2027:
2024:
2021:
2019:
2017:
2014:
2013:
2010:
2005:
2003:
2000:
1997:
1995:
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1990:
1989:
1986:
1981:
1978:
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1726:
1721:
1719:
1716:
1714:Notification
1713:
1710:
1708:
1706:
1703:
1702:
1699:
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1683:
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1633:
1631:
1628:
1625:
1622:
1620:
1618:
1615:
1614:
1611:
1609:
1607:Correct time
1606:
1603:
1600:
1598:
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1589:
1584:
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1578:
1575:
1573:
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1567:
1564:
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1553:
1550:
1548:
1546:
1543:
1542:
1539:Help Officer
1538:
1535:
1533:
1530:
1527:
1524:
1522:
1520:
1517:
1516:
1513:
1507:
1505:
1503:Man with gun
1502:
1499:
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1490:
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1484:
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1478:
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1077:
1075:
1072:
1069:
1066:
1064:
1062:
1059:
1058:
1055:
1052:
1050:(In) Contact
1049:
1047:
1044:
1041:
1038:
1036:
1034:
1031:
1030:
1026:
1021:
1018:
1015:
1012:
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1005:
1004:
1001:
998:
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992:
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985:
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966:
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944:
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922:
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902:
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848:
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839:
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831:
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815:
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778:
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731:
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719:
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631:
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621:
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584:
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547:
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537:
536:
533:
528:
525:
522:
519:
517:
515:
512:
511:
508:
505:
502:
500:
498:Signals good
497:
492:
490:
487:
486:
482:
479:
476:
474:
471:
466:
464:
461:
460:
457:
454:
451:
449:
446:
443:
440:
438:
436:
433:
432:
429:Traffic Stop
428:
426:
424:
422:
420:
418:
416:
414:
412:
410:
409:
405:
403:
401:
399:
397:
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330:
328:
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322:
319:
316:
314:
311:
310:
307:
305:
301:
297:
295:
292:
289:Clear Speech
288:
285:
282:
279:
276:
273:
270:
267:
265:
264:
261:
259:
257:APCO Meaning
254:
252:
249:
248:
240:
232:
230:
226:
221:
219:
214:
212:
208:
207:
202:
197:
195:
194:
189:
184:
183:
181:
176:
175:
169:
167:
163:
160:'s hit song "
159:
156:enthusiasts.
155:
150:
148:
144:
140:
139:
128:
124:
120:
118:
114:
110:
106:
102:
98:
90:
87:
83:
80:
77:
76:
75:
72:
63:
61:
60:North America
57:
52:
51:
47:
46:citizens band
43:
42:brevity codes
39:
35:
29:
22:
5433:
5422:. Retrieved
5415:the original
5402:
5384:
5366:
5348:
5329:
5318:. Retrieved
5304:
5275:. Retrieved
5266:
5256:
5238:
5226:. Retrieved
5212:
5207:
5196:. Retrieved
5189:the original
5184:
5172:
5160:
5141:
5130:. Retrieved
5128:. p. 29
5065:. Retrieved
5058:the original
5045:
5028:
5014:
4997:
4980:
4963:
4946:
4934:. Retrieved
4924:
4912:. Retrieved
4901:
4887:
4873:
4861:. Retrieved
4857:
4848:
4840:the original
4830:
4811:
4799:. Retrieved
4785:
4773:. Retrieved
4759:
4742:
4728:
4709:
4697:. Retrieved
4682:
4665:
4648:
4636:. Retrieved
4616:
4605:. Retrieved
4575:. Retrieved
4570:
4558:
4469:marine radio
4463:are used in
4397:
4393:Hundred Code
4372:
4175:Affirmative
4123:
4107:Affirmative
3876:Use Caution
3865:Phrase Word
3855:
3817:
3814:
3786:
3672:Bomb threat
3632:En route...
3393:Shoplifting
3369:Disturbance
3281:Use Caution
3271:
3265:
3252:
3246:
3237:
3214:
3210:
3077:Drag racing
2950:
2943:Bomb threat
2701:
2696:
2631:Fire, grass
2583:Fifth alarm
2538:Third alarm
2444:
2189:
1965:
1935:
1792:Information
1693:
1688:
1361:Use Caution
1331:
999:Shoplifting
891:Disturbance
779:... On Duty
697:In service.
503:Signal Good
477:Signal Weak
455:Use caution
303:
293:
290:
238:
222:
215:
211:Police Ten 7
210:
204:
198:
191:
185:
178:
172:
170:
158:C. W. McCall
151:
136:
134:
125:
121:
113:vacuum tubes
109:State Police
96:
94:
73:
69:
53:
49:
37:
33:
32:
5277:October 26,
4936:21 December
4914:21 December
4863:December 7,
4571:rackcdn.com
4409:187 (slang)
4369:Police code
4310:Can Handle
4232:In-Service
4146:Unreadable
4074:In Pursuit
4030:Responding
3909:In Service
3887:Unreadable
3842:CODE EIGHT
3834:CODE SEVEN
3794:CODE THREE
3578:Hit and run
3513:Kidnapping
3266:(Ten-Code)
2972:Bank alarm
2466:Fire alarm
2235:CW traffic
1970:Hit and run
1694:Private Use
1689:General Use
1587:—Reserved—
1497:available?
1495:drunkometer
1463:Kidnapping
941:Responding
708:In Service
702:In Service
635:Out at ...
579:Relay (To)
483:Unreadable
406:In Pursuit
193:Blue Bloods
38:ten signals
5493:Telegraphy
5467:Categories
5424:2010-01-23
5320:2015-11-25
5228:2014-12-02
5198:2010-01-23
5132:2020-03-25
5067:2017-11-18
4910:. Fox News
4607:2010-01-23
4550:References
4253:Return to
4215:Uncovered
4008:Off Radio
3920:Available
3810:CODE FIVE
3802:CODE FOUR
3766:CODE ZERO
3433:Disregard
3385:Vandalism
3345:Say again
3329:Out at...
2490:Box alarm
2307:Net free.
1531:EMERGENCY
1186:Available
1132:Disregard
1127:Disregard
1109:Telephone
983:Vandalism
728:Say Again
685:Off Radio
291:(c. 1971)
268:1937 APCO
209:(formerly
171:The movie
147:microphone
5483:Encodings
5408:"Q Codes"
5353:"K-Codes"
4477:shortwave
4294:At Scene
4279:Stand-By
4183:Negative
4063:Priority
4019:On Radio
3986:Stand By
3825:CODE SIX
3782:CODE TWO
3774:CODE ONE
3624:Negative
3537:Off duty
3521:Shooting
3505:Homicide
3489:Burglary
3441:On scene
3417:Location
3353:Stand by
3050:Blockade
2951:Technical
2610:En Route
2569:Negative
2562:Negative
1775:Off duty
1479:Shooting
1447:Homicide
1415:Burglary
1155:On scene
1106:Call ...
1081:Location
1078:Location
1073:Location
1070:Location
1027:Priority
811:Stand By
808:Stand by
782:On Radio
774:Dog Case
751:Negative
360:Go Ahead
117:dynamotor
34:Ten-codes
5394:Archived
5374:Archived
5356:Archived
5337:Archived
5314:Archived
5271:Archived
5246:Archived
5222:Archived
5149:Archived
5100:cite web
4819:Archived
4801:27 April
4795:Archived
4775:27 April
4769:Archived
4717:Archived
4699:15 March
4693:Archived
4638:15 March
4629:Archived
4601:Archived
4496:See also
4248:Weather
4199:Enroute
4141:Meaning
3761:Meaning
3569:Traffic
3497:Robbery
3425:Call...
1966:Traffic
1626:No rush
1470:10-31 E
1454:10-31 D
1438:10-31 C
1431:Robbery
1422:10-31 B
1394:10-31 A
1384:Pick Up
990:10-17 C
974:10-17 B
946:10-17 A
938:Enroute
166:truckers
154:CB radio
5298:. 1990.
4599:. NPR.
4577:July 1,
4483:Z codes
4399:Adam-12
4240:Repeat
3733:
3587:Unknown
3572:K=Fatal
3518:10-31E
3510:10-31D
3502:10-31C
3494:10-31B
3486:10-31A
3401:Urgent
3390:10-17C
3382:10-17B
3374:10-17A
1979:Unknown
1024:Urgent
723:Repeat
668:10-7 B
643:10-7 A
574:Relay.
312:10-MAX
250:Signal
141:, with
66:History
4457:Q code
4102:10-33
4058:10-21
4036:10-17
4025:10-11
4014:10-7B
4003:10-22
3992:10-12
3948:10-14
3937:10-7A
3926:10-24
3725:10-99
3717:10-98
3709:10-97
3701:10-95
3693:10-92
3685:10-91
3677:10-90
3669:10-89
3664:Chase
3661:10-80
3653:10-79
3645:10-78
3637:10-77
3629:10-76
3621:10-74
3613:10-70
3605:10-63
3597:10-56
3581:Injury
3566:10-50
3558:10-49
3550:10-46
3542:10-44
3534:10-42
3526:10-38
3478:10-29
3470:10-28
3462:10-27
3454:10-26
3446:10-25
3438:10-23
3430:10-22
3422:10-21
3414:10-20
3406:10-19
3398:10-18
3377:Theft
3366:10-15
3358:10-13
3350:10-12
3337:Clear
3313:Relay
3305:Roger
3184:10-99
3163:10-98
3139:10-97
3115:10-96
3088:10-95
3064:10-94
3037:10-93
3013:10-92
2986:10-91
2959:10-90
2923:10-89
2899:10-88
2878:10-87
2857:10-86
2836:10-85
2815:10-84
2791:10-83
2767:10-82
2746:10-81
2739:Chase
2719:10-80
2672:10-79
2648:10-78
2624:10-77
2600:10-76
2576:10-75
2552:10-74
2531:10-73
2507:10-72
2480:10-71
2453:10-70
2423:10-69
2399:10-68
2375:10-67
2351:10-66
2327:10-65
2300:10-64
2273:10-63
2249:10-62
2225:10-61
2198:10-60
2168:10-59
2147:10-58
2123:10-57
2099:10-56
2078:10-55
2057:10-54
2036:10-53
2015:10-52
1991:10-51
1973:Injury
1944:10-50
1911:10-49
1893:10-48
1872:10-47
1851:10-46
1830:10-45
1806:10-44
1782:10-43
1755:10-42
1731:10-41
1704:10-40
1663:10-39
1638:10-38
1616:10-37
1594:10-36
1569:10-35
1544:10-34
1518:10-33
1486:10-32
1366:10-31
1340:10-30
1303:10-29
1275:10-28
1247:10-27
1219:10-26
1191:10-25
1162:10-24
1137:10-23
1114:10-22
1088:10-21
1060:10-20
1032:10-19
1006:10-18
967:Theft
923:10-17
898:10-16
873:10-15
844:10-14
816:10-13
787:10-12
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317:AWOL
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5279:2011
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4865:2017
4803:2015
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