The BART Police (BARTPD), officially the Bay Area Rapid Transit Police Department, is the transit police agency of the BART rail system in the U.S. state of California. The department has approximately three hundred police personnel, including over two hundred sworn peace officers. The chief, Kevin Franklin commands the agency's law enforcement, parking, and community relations services. BART Police participates in a mutual aid agreement with other Bay Area law enforcement agencies. In 2011 and 2012 the department came under national scrutiny due to several officers involved in fatalities of the rail system's patrons.
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.