Special Police, came under the supervision of the Protection Division of the Public Building Service (PBS). In 1971, the Administrator of GSA signed an order formally establishing the Federal Protective Force, later known as FPS, and the Civil Service Commission authorized the special classification title of Federal Protective Officer (FPO). Initially, the main function of FPS was protection, as an integral part of building operations. For the most part, the force held fixed posts and performed duties that would be considered safety functions today, such as: eliminating fire and safety hazards, patrolling buildings, detecting fires, and providing the first line of defense in fighting fires; and answering visitor questions, assisting citizens, rendering first aid, and directing traffic when necessary. By 1960, the mission of FPS had become the first line of defense against bomb threats, bombings, vandalism, mass demonstrations, and violence against Federal buildings. In 1980, Fidel Castro instigated a wave of emigration from Cuba to the United States using the harbor town of Mariel for debarkation. The thousands of refugees were eventually distributed to military installations in several states (Fort Chaffee, AR, Fort McCoy, WI, Fort Indiantown Gap, PA) and Puerto Rico to await permanent resettlement. The Immigration and Naturalization Service and Border Patrol were understaffed to provide civilian law enforcement officers needed to maintain order within the installations. The Federal Protective Service, then administratively placed under the General Service Administration's Public Building Service, was among several federal authorities asked to provide additional on-site officers for the duration of the event. Federal Protective Officers from across the country frequently served in the camps, and also during the riot at Fort Chaffee. More recently, the role of the FPS officer has undergone further changes. The FPS has shifted its emphasis from the fixed guard post concept of security to a mobile police patrol and response. FPS contracts private security companies to guard fixed posts. FPS officers perform all duties attendant to the normal interpretation of a police officer function including maintaining law and order, preventing or deterring disturbances, and investigating both felonies and misdemeanors. The Civil Service Commission developed standards for FPS applicants, which included background investigations, and physical examinations. On August 28, 1996, the Federal Protective Service arrested Civil Rights Movement historian Randy Kryn and 10 others who were protesting in a demonstration at the Kluczynski Federal Building in downtown Chicago during that year's Democratic National Convention. 21st century