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A police 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, response codes, or other status ...
Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by law enforcement and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.
Emergency service response codes are predefined systems used by emergency services to describe the priority and response assigned to calls for service. Response codes vary from country to country, jurisdiction to jurisdiction, and even agency to agency, with different methods used to categorize responses to reported events.
Los Angeles Police Department resources. LAPD officers conducting an arrest. The Los Angeles Police Department (LAPD), the primary law enforcement agency of Los Angeles, California, United States, maintains and uses a variety of resources that allow its officers to effectively perform their duties.
IC codes (identity code) or 6+1 codes are codes used by the British police in radio communications and crime recording systems to describe the apparent ethnicity of a suspect or victim. Originating in the late 1970s, the codes are based on a police officer's visual assessment of an individual's ethnicity, as opposed to that individual's self ...
10-20 Denotes location, as in identifying one's location ("My 20 is on Main Street and First"), asking the receiver what their current location or immediate destination is ("What's your 20?"), or inquiring about the location of a third person ("OK, people, I need a 20 on Little Timmy and fast").
It consists of a signalling protocol such as the use of abbreviated codes like the CB radio ten-code, Q codes in amateur radio and aviation, police codes, etc., and jargon. Some elements of voice procedure are understood across many applications, but significant variations exist.
The APCO phonetic alphabet, a.k.a. LAPD radio alphabet, is the term for an old competing spelling alphabet to the ICAO radiotelephony alphabet, defined by the Association of Public-Safety Communications Officials-International [1] from 1941 to 1974, that is used by the Los Angeles Police Department (LAPD) and other local and state law ...
Police radio systems almost always use two-way radio systems to allow for communications between police officers and dispatchers. Most modern police radio systems are encrypted, and many jurisdictions have made listening to police radio frequencies as a private citizen illegal.
Radio communications during the September 11 attacks served a vital role in coordinating rescue efforts by New York Police Department, New York Fire Department, Port Authority Police Department, and emergency medical services.