Police officers with Marine Corps Logistics Base Barstow Police Department stand infront of a fully modified emergency response vehicle on base, March 18. The base police department has recently modified the vehicles in their inventory to comply with Marine Corps standards and meet federal and state regulations. The vehicles assist police officers with duties such as patrolling areas, responding to incidents and transporting criminal suspects. - Police officers with Marine Corps Logistics Base Barstow Police Department stand infront of a fully modified emergency response vehicle on base, March 18. The base police department has recently modified the vehicles in their inventory to comply with Marine Corps standards and meet federal and state regulations. The vehicles assist police officers with duties such as patrolling areas, responding to incidents and transporting criminal suspects.