Law enforcement jargon

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.

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.

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: A—Asian, B—Black, H—Hispanic, O—Other, W—White. 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, J—Juvenile. Thus the initialism WFJ (or wfj) appearing after a subject's name in a police log would denote a white female juvenile.

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