Transit Police are actively involved in protecting Metro passengers and infrastructure from terrorist threats . After the September 11 , 2001 attacks , the 2004 Madrid train bombings , and the July 7 , 2005 London subway bombings , and periodically since , members of the Metro Transit Police Special Response Team conduct security sweeps of the rail system while armed with special weapons systems , H&K MP5 submachine guns and supported by explosive ordnance detection K-9 teams . Additionally , the department has a dedicated explosive disposal team
September 11 , 2001 attacks
September 11 attacks
Metro Transit Police Department