View source for Police radio code

{{Short description|Brevity codes used by law enforcement}}
{{Clean-up|reason=Better sourcing needed.  Should be global in scope. Should not repeat other articles, for example tens code, hundreds code. Should cover the signals, incident and response codes mentioned in the lead.|date=February 2025}}
[[A]] '''police radio code''' is a [[brevity code]], usually numerical or alphanumerical, used to transmit information between [[law enforcement]] over [[police radio]] systems in the [[United States]].  Examples of police codes include "[[10 codes]]" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, [[Emergency service response codes|response codes]], or other status codes. These code types may be used in the same sentence to describe specific aspects of a situation.

Codes vary by country, administrative subdivision, and agency. It is rare to find two agencies with the same ten codes, signals, incident codes, or other status codes. While agencies with adjacent or overlapping jurisdictions often have similar codes, it is not uncommon to find differences even within one county or city. Different agencies can have codes dissimilar enough to make communication difficult. There are similarities among popular sets of 10-codes.<ref>{{Cite web |title=Police 10 Codes |url=https://copradar.com/tencodes/ |access-date=2022-10-20 |website=copradar.com}}</ref>

The topic of standardized codes has been discussed in US law enforcement circles, but there is no consensus on the issue. Some law enforcement agencies use “plain talk” or “plain codes” which replace codes with standard speech and terminology, albeit in a structured manner or format. Arguments against plain language include its lack of brevity, variability, and lack of secrecy which is often tactically advantageous or a safety issue when officer communications can be overheard by the civilian public.<ref>{{Cite web |title=Police 10 codes vs. plain language: The history and ongoing debate |url=https://www.police1.com/police-products/communications/articles/police-10-codes-vs-plain-language-the-history-and-ongoing-debate-zFVa5Fkggm8NKBPM/ |access-date=2022-10-20 |website=Police1 |language=en}}</ref>

==Examples==
{{Unref sect|date=February 2025}}
{| class="wikitable"
|-
! Code !! Description
|-
| 2 || No lights or sirens
|-
| 3 || Lights and sirens
|-187 murder
| 4 || Disregard
|-
| 121 || Priority on the air
|-
| 122 || Priority on silence
|-
| 123 || Sick or injured person
|-
| 124 || Operation completed
|-
| 125 || Operation continue
|-
| 126 || Intercept suspects
|-
| 127 || Proceed with caution
|-
| 128 || No siren, no flashing
|-
| 129 || Request back up
|-
| 130 || Emergency
|-
| 131 || Shooting
|-
| 132 || Armed robbery
|-
| 133 || Possibly dangerous person
|-
| 134 || Kidnapping
|-
| 135 || Escape
|-
| 136 || Hold of hostages
|-
| 137 || Riot
|-
| 138 || Bomb alert
|-
| 139 || Air disaster
|-
| 140 || Murder
|-
| 141 || Accident
|-
| 142 || Unlawful assembly
|-
| 143 || Hit and run
|-
| 144 || Impaired
|-
| 145 || Prisoner transport
|-
| 146 || Breaking and entering (vehicle or residence)
|-
| 147 || Suspect armed
|-
| 148 || Brawl or family feuding
|-
| 149 || Ascertainment
|-
| 150 || Theft
|}

=== California ===
The Hundred Code is a three-digit police code system.<ref>{{Citation |title=SQLSTATE Return Codes |date=2010 |work=SQL Clearly Explained |pages=421–431 |url=https://doi.org/10.1016/b978-0-12-375697-8.50021-2 |access-date=2025-04-29 |publisher=Elsevier |isbn=978-0-12-375697-8}}</ref> This code is usually pronounced digit-by-digit, using a [[radio alphabet]] for any letters, as 505 "five zero five" or 207A "two zero seven Alpha". The following codes are used in [[California]]. They are from the [[California Penal Code]], except where noted below.<ref>{{cite web |last1=Dansker |first1=Zack |title=Police Radio Codes |url=https://web.stanford.edu/~reneeb/bill/n.radio.code.html |website=stanford.edu |access-date=25 March 2022}}</ref>{{Better ref needed|date=February 2025}}

In the 1970s, the television show ''[[Adam-12]]'' was considered so authentic in its portrayal of Los Angeles PD officers and their procedures that excerpts from the shows were used as police training films nationwide.<ref>{{Cite web |title=How the TV series 'Adam-12' helped the LAPD sell the 'good cop' image |url=https://www.kpcc.org/show/the-frame/2016-09-16/how-the-tv-series-adam-12-helped-the-lapd-sell-the-good-cop-image |access-date=November 28, 2023 |website=kpcc.org |language=en |quote=We had a technical advisor working with us every day that we shot the show. Once we left the car, they'd say: You do the approach this way, to this automobile where there's this suspected felon. Interestingly enough, during the whole run of "Adam-12," episodes of the show were being bicycled all over the country to police departments to be used as training videos.}}</ref> This led to the widespread use of California Penal Codes as radio codes.{{fact|date=November 2020}}

{| class="wikitable"
! Code !! Description
|-
|187 || [[Murder]]
|-?

|505 || [[Kidnapping]]
|-
|207A || Kidnapping attempt
|-
|211 || [[ Robbery]]
|-
|211A || Robbery alarm
|-
|211S || Robbery alarm, silent
|-
|212 || Illegal use of drugs
|-
|213 || Use of illegal explosives
|-
|214 || Kidnapping and murder
|-
|215 || Carjacking
|-
|216 || Child abuse
|-
|217 || [[Assault]] with intent to murder
|-
|218 || Sexual activity with a minor
|-
|219 || Cutting or stabbing
|-
|240 || Assault
|-
|241 || Impaling
|-
|242 || [[Battery (crime)|Battery]]
|-
|243 || Battery with dangerous weapons
|-
|244 || Throwing acid with intent to disfigure or burn
|-
|245 || [[Assault with a deadly weapon]]
|-
|246 || Shooting at inhabited dwelling
|-
|261 || [[Rape]]
|-
|261A || Attempted rape
|-
|273A || Child neglect
|-
|273D || [[Domestic violence]] – [[felony]]
|-
|288 || [[Lascivious|Lewd conduct]] with a minor
|-
|311 || Possession of obscene material
|-
|314 || [[Indecent exposure]]
|-
|374B || Illegal dumping
|-
|390 || Drunk
|-
|390D || Drunk, unconscious
|-
|415 || Disturbance
|-
|417 || Person with a gun
|-
|417K || Person with a knife
|-
|417B || Person with bomb
|-
|419 || Dead human body
|-
|428 || Child molest
|-
|444 || Officer-involved shooting
|-
|459 || [[Burglary]]
|-
|459A || [[Burglar alarm]]
|-
|459S || Burglar alarm, silent
|-
|470 || [[Forgery]]
|-
|480 || [[Hit and run (vehicular)|Hit and run]] – felony (great bodily injury or death)
|-
|481 || Hit and run – misdemeanor
|-
|484 || [[Theft]] (definition)
|-
|486 || Major theft (value < 10,000)
|-
|487 || [[Grand theft]] (value > $950, or certain livestock)
|-
|488 || Petty theft (value < $950)
|-
|501 || Drunk driving  – felony (great bodily injury or death)
|-
|502 || [[Driving under the influence|Drunk driving]]
|-
|503 || [[Motor vehicle theft|Auto theft]]
|-
|504 || Tampering with a vehicle
|-
|505A || [[Reckless driving]]
|-
|507 || [[Public nuisance]]
|-
|510 || Speeding or racing vehicles
|-
|586 || [[Parking violation|Illegal parking]]
|-
|594 || [[Malicious mischief]]
|-
|604 || Throwing object
|-
|647 || Lewd conduct (various subsections)
|-
|653M || [[Prank call#As a crime|Threatening phone calls]]
|-
|998 || Officer involved shooting

|}

===500 codes and similar===
"500" codes are only radio codes that substitute for other code sections. For example, a "503" is not Penal Code section 503 (embezzlement). All of the "500" codes, generally, involve vehicles and are thus grouped together (except 594, which is an actual Penal Code section). Additionally, "390" and variants are also radio codes only (CPC 647(f) is the legally enforced section "public intoxication").{{Citation needed|date=February 2025}}

In California, some radio codes in the 400–599 range that refer to vehicle violations are left over from the California Vehicle Code (CVC) which was revised in 1971.  Some agencies, such as the [[California_Highway_Patrol|California Highway Patrol (CHP)]] use the current vehicle code numbers while municipal and county police agencies, especially the Los Angeles Police Department (LAPD) still use the 500 series.{{Citation needed|date=February 2025}}

{| class="wikitable"
!Old !! New !! Description
|-
|480 || 20001 || Felony hit and run
|-
|481 || 20002 || Misdemeanor hit and run
|-
|501 || 23151 || Felony drunk driving
|-
|502 || 23152 || Misdemeanor drunk driving<ref name="Deuce">A drunk driver is often referred to as a "[[Deuce (DUI)|deuce]]".  This comes from the "2" at the end of the original code, "502", which subsequent codes have retained.</ref>
|-
|503 || 10851 || Stolen vehicle (also a penal code section, 487A)
|-
|504 || 10854 || Tampering with a motor vehicle
|-
|505 || 23103 || Reckless driving
|-
|510 || 23109 || Speed contest / racing
|-
|586 || 22500 || Illegal parking
|}

==See also==
* [[Emergency service response codes]]
* [[APCO phonetic alphabet]]
* [[ICAO spelling alphabet]]
* [[Ten-code]]

==References==
<references/>

==External links==
* {{cite web|url=http://www.policecodes.org |website=PoliceCodes.org|title= Police Scanner Codes Site}}
* {{cite web|url=http://www.mendosa.com/code.html |title=Radio and Identification codes|website=Mendosa.com}}
* {{cite web|url=https://policecodes.net |title=Police Codes|website=PoliceCodes.net}}

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[[Category:Law enforcement]]
[[Category:Encodings]]
[[Category:Brevity codes]]