- Name: Cassie
- Specialty: Explosives Detection
- Breed: Labrador Retriever
- Color: Yellow
- Sex: Female
- Weight: 60 pounds
- Birthday: November 29, 2010
- Training: ATF National Canine Center, Front Royal, VA
- Handler: Special Agent Canine Handler Brooks Jacobsen
- Location: Los Angeles Field Division
K-9 Cassie was born in Castine, Maine, and raised by a puppy raiser for the Susquehanna Service Dogs, an organization that provides assistance K-9s to those with disabilities. Cassie was deemed not suitable to be a service K-9, and was then evaluated by ATF K-9 trainers. She was accepted into the ATF Explosive Detection Canine (EDC) program. K-9 Cassie went through her 16-week training program and deployed to work with her Special Agent Canine Handler (SACH) Brooks Jacobsen in 2013.
K-9 Cassie’s assignments include venue security sweeps for the San Diego Marathon, San Diego County Fair, Rose Parade/Bowl and the BCS Championship Football Game. Her primary focus is to support the ATF Los Angeles Field Division with evidence searches during search warrants, but also help other federal, state and local law enforcement agencies find bombs, firearms and ammunition as part of criminal investigations. The Los Angeles Field Division covers the Southern third of California.