Are there different types of police dogs?

Most are German shepherds, the popular idea of Police Dog conjures up this breed. I understand the Russians, who make considerable use of Police Canines, used and continue to use Huskies. They have beautiful blue eyes.Huskies are better cold-adapted than the Shepherds, an important requirement in the USSR. As there are different police dog requirments- some other breeds certainly have been used in detective work ( in the US and Europe) such as specially trained scent hounds such as Bloodhounds.