What is "police dog"

n. A canine trained and employed by the police to pursue suspects or sniff out contraband.

n. any dog trained to assist police especially in tracking

A police dog, known as a "K-9" or "K9" (a homophone of " canine") in some English-speaking countries, is a dog that is specifically trained to assist police and other law-enforcement personnel in their work. Their duties include searching for drugs and explosives, searching for lost people, looking for crime scene evidence, and protecting their handlers. Police dogs must remember several hand and verbal commands. The most commonly used breed is the German Shepherd.

In many common law jurisdictions, the intentional injuring or killing of a police dog is a felony.

'Police Dog ' is a 1955 British crime film directed by Derek Twist. It stars Charles Victor, Nora Gordon, Cecil Brock, John Le Mesurier, James Gilbert, and Christopher Lee.