Law enforcement jargon

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Law enforcement jargon refers to a large body of acronyms, abbreviations, codes and slang used by law enforcement personnel to provide quick concise descriptions of people, places, property and situations, in both spoken and written communication. These vary between countries and to a lesser extent regionally.[1]

United Kingdom[edit]




  • AIO: All In Order
  • ATT: At This Time
  • MISPER: Missing person
  • MOE: Method Of Entry (battering ram)
  • WOFF: Write off; a vehicle or other property deemed a total loss for insurance purposes
  • WINQ: Warrant inquiry
  • Code 99: Tea break, "99" is a brand of Co-op tea. The Co-op is a popular UK supermarket chain.
  • NOK: Next Of Kin
  • PAAOTCO: Please Ask An Officer To Call On...
  • POLSA: Police Search Advisor.
  • POLSTA: Police Station
  • U/K: Unknown


  • Big Red Key: A type of battering ram.[3][4]

United States[edit]

Numerical and alphanumerical codes[edit]

The ten-codes are used only for voice communications, usually radio transmissions and denote commonly used phrases; for example 10-16 means domestic disturbance for some agencies. Use of ten-codes is intended for the clear, quick, and concise communication between law enforcement officers.

The response codes consist of the word "Code" followed by a number; for example "Code 3" means lights and sirens.

Numbers and alphanumeric combinations referring to offenses and actions covered by legal codes are often used both as nouns and verbs in both spoken and written communication. Since each state has its own system of law, this usage varies widely by state. For example in California, if a suspect is 849B'd, it means they are released from custody after being arrested (instead of being booked into county jail) and refers to section 849(b) of the California Penal Code.

Subject description initialisms[edit]

Three letter abbreviations are commonly used to describe subjects mentioned in incident reports. The first letter denotes apparent race/ethnicity; the most commonly used letters are: AAsian, BBlack, HHispanic, O—Other, WWhite. The letters PI are occasionally used to denote Pacific Islander resulting in a four letter abbreviation [1]. The second letter denotes gender: F—Female, M—Male. The final letter denotes whether the subject is legally an adult: A—Adult, JJuvenile. Thus the initialism WFJ (or wfj) appearing after a subject's name in a police log would denote a white female juvenile.

Code violations[edit]

Initialisms describing situations[edit]

  • ATL: Attempt To Locate
  • BOLO: Be On Lookout (pronounced as Bo-Low)
  • DB: Dead Body
  • DID: Driver in Ditch
  • DOA: Dead On Arrival
  • EDP: Emotionally Disturbed Person
  • GOA: Gone On Arrival
  • IFO: In Front Of
  • LKA: Last Known Address
  • LNU: Last Name Unknown
  • QOA: Quiet On Arrival
  • UTL: Unable To Locate

Miscellaneous abbreviations and descriptive terms[edit]

  • Adam Henry (AH, i.e, "Asshole"): Ignorant individual slang [see HUA]
  • APB: All Points Bulletin
  • APC: All Points County
  • AVL: Automatic Vehicle Location; allowed dispatch to see exactly where a given patrol car was [5]
  • BOLO: Similar to and APB, Be On The Look Out (for)
  • CJ: County Jail
  • Civies: term describing non uniform clothing used in undercover operations
  • CompStat: method of tracking criminal activity and subsequent enforcement
  • Condition: problem or concern in need of police attention
  • DA: District Attorney
  • DV: Domestic Violence
  • DOB: Date Of Birth
  • DOJ: Department of Justice
  • EC: Emergency Contact
  • ETOH: Intoxicated
  • FD: Fire Department
  • FTO: Field Training Officer
  • GAT: Illegal firearm
  • GOA: Gone On Arrival
  • GSW: Gunshot wound
  • HBO: Handled By Officer
  • House mouse: A police officer who seldom leaves the police station
  • HUA: Ignorant slang [see AH or "Adam Henry"]
  • KA: Known Associate
  • LEDS/LEADS: Law Enforcement (Agencies) Data System
  • LUDS: Local Usage Details. A detailed record of calls made and received from a particular phone number.
  • MDT: Mobile Data Terminal, referring to in car computer systems.
  • MUTT: An extremely unsavory character
  • MVA: Motor Vehicle Accident
  • NAT: Necessary Action Taken
  • NORP: Normal, Ordinary, Responsible Person
  • OLN: Operator's License Number
  • PA: Prosecuting Attorney
  • PC: Probable Cause — legal standard of proof that is greater than reasonable suspicion
  • PD: Police Department or Police Headquarters
  • PMVA: Pedestrian Motor Vehicle Accident
  • PR: Person (or Party) Reporting (used by LAPD and various others)
  • PUKE: A pejorative for an inmate of the county jail or state prison
  • RDO: Regular Day Off
  • Responsible (RESP): Alleged perpetrator of a violation
  • RO: Registered Owner
  • RP: Reporting Person/Party
  • SA: State's Attorney
  • SKELL: Unsavory character (term often used by NY Police Officers)
  • SKELL GEL: Anti bacterial lotion used by Officers after contact with skell(s)
  • SNEU: Street Narcotics Enforcement Unit
  • SO: Sheriff's Office
  • SOC: Social Security Number
  • SOR: Sex Offender Registration/Registrant
  • SRO: School Resource Officer
  • UTL: Unable To Locate
  • WOOD SHAMPOO: Using less than lethal force to gain compliance

Miscellaneous acronyms[edit]

Miscellaneous abbreviations[edit]

  • B&R: Booked and released (from county jail)
  • BKD: Booked (into county jail)
  • BLK: Street block
  • BTWN: Between
  • BUS: Ambulance
  • COMPL: Complainant
  • Copy: Affirmative
  • DESC: Description
  • JUV: Juvenile
  • K9: (or K-9), handler-and-canine unit
  • MOD: Model (of vehicle, for example)
  • M/N: Model Number (of article, for example)
  • PROP: Property
  • PERP: Perpetrator
  • R&I: Records and Information
  • REG: Vehicle registration
  • RELD/RLSD: Released
  • RPTS: Reports (verb)
  • SER: Serial number
  • S/N: Serial number
  • S/H: Station house
  • SUSP: Suspect
  • S/V: Suspect Vehicle
  • TKN: Taken
  • TANGO: Thank You
  • UNK: Unknown
  • UTL: Unable To Locate
  • VEH: Vehicle
  • VIC: Victim
  • V/C: Victim / Complainant
  • WARR: Warrant

Popular culture[edit]

Law enforcement jargon is heavily used in police procedurals and similar shows. CSI: Crime Scene Investigation, a television series about forensic scientists, uses many acronyms such as AFIS, CODIS and DB.

The numeric code 187 from the California Penal Code section dealing with murder has been featured in numerous gangsta rap songs such as Deep Cover and as the title of the movie One Eight Seven.

See also[edit]

External links[edit]