ATF Explosives Detection Canine Wes is assigned to the Washington Field Division with Special Agent Canine Handler Cliff Sutton. Wes began puppy training in a New York state prison as part of the Puppies Behind Bars (PBB) program. Wes is certified by the ATF to detect 19,000 different combinations of military, commercial, and/or homemade explosives, firearms, ammunition, spent shell casings and post-blast debris. As a S.E.E.K. trained K-9, Wes can be deployed off leash to targets over 100 yards away. Wes supports ATF’s mission of protecting the public by combating violent crime, assisting federal, state, and local law enforcement agencies across the United States in the detection of explosives and firearm related evidence.