Police Radio 10-Codes of the United States

The police radio 10-code system represents one of law enforcement’s most enduring communication innovations. Developed in 1937 by Charles “Charlie” Hopper, the Communications Director for the Illinois State Police, these codes revolutionized how officers communicated over radio frequencies. During the early days of police radio technology, equipment was primitive by modern standards—transmitters were weak, receivers […]
Check Police code list of Japan

Police codes are essential for law enforcement agencies to communicate efficiently. In Japan, these codes help officers relay information quickly and discreetly. Whether you are a resident, a traveler, or someone interested in law enforcement, understanding police codes in Japan can be beneficial. In this guide, we will explore the police code system in Japan, […]
Police 10 Codes PDF

Police 10 codes are shorthand messages used by law enforcement agencies to communicate quickly and efficiently over radio channels. These codes, which are part of a larger system called police scanner codes, allow officers to relay information clearly without revealing sensitive details. For those interested in learning these codes, a downloadable Police 10 Codes PDF […]