Swedish police dogs during nationalist demonstrations on National Day in 2007

Police dog being trained to attack

A police dog (also called a K-9) is a dog trained to help police and other law enforcement people. German Shepherds are the most common breed, but other breeds are also used. If a police dog is killed in duty, it is usually given a full police funeral. K-9s are often given their own ballistic vests, and some are given their own police IDs and badges.