- Name: Duchess
- Specialty: Explosives Detection/Search Enhanced Evidence K-9 (S.E.E.K.)
- Breed: Labrador Retriever
- Color: Black
- Sex: Female
- Weight: 65 pounds
- Birthday: December 7, 2016
- Training: ATF National Canine Center, Front Royal, VA
- Handler: Special Agent Canine Handler Gabriel Denton
- Location: Los Angeles Field Division
K-9 Duchess is an ATF Explosives Detection Canine assigned to the Los Angeles Field Division with Special Agent Canine Handler (SACH) Gabriel Denton. Her job is to find explosives, guns and ammunition. K-9 Duchess is also an ATF Search Enhanced Evidence K-9 (S.E.E.K.) able to work off leash up to 150 yards away from her handler and detect more than 19,000 distinct odors.
K-9 Duchess and SACH Gabriel Denton recently collaborated with the United States Postal Service (USPS) in San Diego, California to support a gun trafficking investigation. The team searched through several USPS parcels and K-9 Duchess showed a significant change of behavior at one box. Due to this alert, the USPS obtained a search warrant for the box and, upon opening the box, discovered two firearms hidden inside.