what does the k in k9 stand for
Police dog A police dog, known in some English-speaking countries as a "K-9" or "K9" (a homophone of "canine"), is a dog that is specifically trained to assist police and other law-enforcement personnel. Their duties include: searching for drugs and explosives, locating missing people, finding crime scene evidence, and attacking people targeted by the police. Police dogs must remember several verbal cues and hand gestures.[1] The most commonly used breeds are the German Shepherd, Belgian Malinois, Bloodhound and Dutch Shepherd.