- Name: Brooklyn
- Specialty: Explosives Detection/Search Enhanced Evidence K-9 (S.E.E.K.)
- Breed: Labrador Retriever
- Color: Black
- Sex: Female
- Weight: 60 pounds
- Birthday: April 17, 2014
- Training: ATF National Canine Center, Front Royal, VA
- Handler: Special Agent Canine Handler Donna Hauser
- Location: San Francisco Field Division
K-9 Brooklyn is an ATF Explosives Detection Canine (EDC) assigned to the Sacramento Field Office of the San Francisco Field Division with Special Agent Canine Handler Donna Hauser. Her job is to find explosives, guns and ammunition. K-9 Brooklyn 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 Brooklyn started her training with the Guide Dogs for the Blind organization.
K-9 Brooklyn and Special Agent Canine Handler Hauser are responsible for conducting canine sweeps at special events. They also participate in firearms searches and support search warrant activities. During the summer of 2019, K-9 Brooklyn located a handgun in a chest of drawers during a search operation with local authorities.