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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, response codes , or ...
[34] [35] [36] The New Zealand Police also use some K-codes, [37] with completely unrelated meanings to those used by NZFS; Police code "K1" means "no further police action required". Telegraph and teletype procedures Q code and prosigns for Morse code are used in amateur radio, aviation, and marine radio.
Code 1: A time critical event with response requiring lights and siren. This usually is a known and going fire or a rescue incident. Code 2: Unused within the Country Fire Authority. Code 3: Non-urgent event, such as a previously extinguished fire or community service cases (such as animal rescue or changing of smoke alarm batteries for the ...
On July 7, 1925, former Police Commissioner Richard E. Enright established the Emergency Automobile Squad, which was the forerunner to today's ESU. [5] The unit was created in order to address problems with growing urbanization in NYC that were beyond the capabilities of regular patrolmen.
Police radio systems historically used public radio frequencies, and listening to them was, for the most part, legal. Most modern police radio systems switched to encrypted radio systems in the 1990s and 2000s to prevent eavesdroppers from listening in.
A telephone alarm is an alarm in which a civilian uses a telephone to dial one of three types of numbers: The first is 9-1-1, which is answered by New York City Police Department (NYPD) operators. The NYPD operators will then transfer the call to a fire department communications office.
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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 enforcement agencies across the state of California and ...