What Is a 10-40 Police Code? 10-40 Police Code
The 10-40 police code meaning for the police forces is Run Silent or No Lights Or Siren.
The usage of police codes such as 10-40 which means Run Silent or No Lights Or Siren is designed to make the communication between the the police crew easier, faster and clearer. Instead of making mistakes in the comunnication, missplelling or stating long descriptions, stating a police code such as 10-40 is best efficient and creating a clear speech procedure.
What Is Run Silent or No Lights Or Siren? Police Code for Run Silent or No Lights Or Siren
The Police Code for Run Silent or No Lights Or Siren is 10-40.
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10-40 Police Code is one of the police codes used but there are tens of police codes used every day for the communication – you can listen to 10-40 Police Code using a police code scanner.
Police codes were developed during 1937–1940 and expanded in 1974 by the Association of Public-Safety Communications Officials-International (APCO).
The most used police code used is when an officer retires a call to dispatch is made. The officer gives a 10-7 code (Out of service) and then a 10-42 code (ending tour of duty).
APCO first proposed Morse code brevity codes in the June 1935 issue of The APCO Bulletin, which were adapted from the procedure symbols of the U.S. Navy, though these procedures were for communications in Morse code, not voice.
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