Possible Clues:

• Bomb squad member
• German shepherd?
• Watch over Jack Russell with Chief Barker on force
• Canine for the boys in blue
• It sometimes sniffs cocaine
• Why the hard-bitten crook gave himself up?
• Canine that helps law officers
• Very cold in game, shivering at the end, maybe I do a lot of sniffing
• Working animal cooled down during game: good
• One canine evident in poodle, possibly? Good -- here's another