National Bureau of Missing Persons, which was established in late 1994. The Visible Policing Division manages highly public police operations, such as guarding senior government officials and dignitaries. Most government residences are guarded by members of the division's Special Guard Unit. The division's all-volunteer Special Task Force handles hostage situations and other high-risk activities. The Internal Stability Division is responsible for preventing and quelling internal unrest, and for assisting other divisions in combating crime. The Community Relations Division consults with all police divisions concerning accountability and respect for human rights. The Supporting Services Division manages financial, legal, and administrative matters. There is also a large reserve division. Rank structure The current ranking system of the South African Police Service was adopted in April 2010. The change caused some controversy as new ranks like "general" and "colonel" have a military connotation. Furthermore, the new rank system mirrors the system used by the South African Police during the apartheid era. In 2009, Deputy Minister of Police Fikile Mbalula spoke of making the police a paramilitary force by changing the SAPS ranking system so that it would closely mirror the military ranking system. This created a significant amount of controversy from people critical of what they called the "militarisation" of the police. The ranking system was amended in 2016. The role of regional police commissioner was introduced, with the rank of lieutenant general. The major and lieutenant ranks were eliminated, with lieutenants assuming the rank of captain and majors assuming the rank of lieutenant colonel. National Commissioners Resources Vehicles Through the early-1990s, the police were equipped with smoke and tear-gas dispensing vehicles, tank trucks with water cannons, vehicles that dispensed barbed wire or razor wire to cordon off areas, and a number of rotor and fixed wing aircraft for surveillance, ground force management, rapid deployment of Task Force and specialist teams to crime scenes and VIP personnel movements. The RG-12 'Nyala' is on the most commonly used armoured vehicle of the service. The Casspir Mine-Resistant Ambush Protected Vehicle is another notable vehicle used by the police. Aviation , with the arrival of a new helicopter, the SAPS Air Wing operates a fleet of 34 aeroplanes and helicopters. The Air Wing has about 50 pilots and 300 other personnel. Airplanes 8 x Pilatus PC-6/B2-H4 1 x Beech King Air C90A 1 x Cessna 680 Citation Sovereign 1 x Pilatus PC-12/47 Helicopters 14 x Eurocopter