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On May 1, 1931, KGPL, the LAPD's dedicated radio callsign, began broadcasting at 1712 kHz, just above the commercial radio broadcasting frequencies; this was later changed to 1730 kHz. Any citizen could monitor outgoing police radio traffic on their home sets.
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 ...
Police code. 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 ...
Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [1]
Certain agencies may add or remove certain codes. For example, in the Los Angeles Police Department's radio procedures, Code 1 is not a response code, and its meaning is transferred to Code 2, the original meaning of which is transferred to the semi-official response code "Code 2-High". Additionally, some agencies use "Code 99" which means for ...
The Los Angeles Police Department ( LAPD ), officially known as the City of Los Angeles Police Department, is the primary law enforcement agency of Los Angeles, California, United States. [ 5] With 8,832 officers [ 5] and 3,000 civilian staff, [ 2] it is the third-largest municipal police department in the United States, after the New York City ...
The Special Investigation Section ( SIS ), unofficially nicknamed the " Death Squad ", is the tactical detective and surveillance unit of the Los Angeles Police Department (LAPD). It is organized under the Robbery–Homicide Division (RHD), a division of the Detective Bureau, itself under the Office of Special Operations. [ 1]
May 17, 2024 at 6:00 AM. LAPD headquarters. (Irfan Khan/Los Angeles Times) As Los Angeles police internal investigators dig deeper into one of the bigger scandals in recent department history ...