When terrorism began to be treated as a more active threat after the September 11 attacks , BART increased its emphasis on infrastructure protection . The police department hosts drills and participates in counter-terrorism working groups . The agency has an officer assigned full-time to the FBI 's Joint Terrorism Task Force . Furthermore , a command officer is designated as a mutual-aid , counter-terrorism , and homeland-security liaison . BART 's police dogs are certified in explosives detection
September 11 attacks
September 11 attacks
Bay Area Rapid Transit Police Department