History of the Metropolitan Police Service by the end of the 19th century. During the 1860s, the flintlock pistols that had been purchased in 1829 were decommissioned from service, being superseded by 622 Beaumont–Adams revolvers firing the .450 cartridge which were loaned from the army stores at the Tower of London following the Clerkenwell bombing. In 1883, a ballot was carried out to gather information on officers' views on whether they wished to be armed, and 4,430 out of 6,325 officers serving on outer divisions requested to be issued with revolvers. The now obsolete Adams revolver was returned to stores for emergencies, and the Bulldog 'Metropolitan
Metropolitan Police Authority the Greater London Authority, by the Greater London Authority Act 1999. Previously control of the Metropolitan Police had vested entirely in the Home Secretary. The MPAs ceased to exist on 16 January 2012, when its functions were transferred to the Mayor's Office for Policing and Crime (MOPAC). Metropolitan Police Authority The Metropolitan Police Authority (MPA) was the local police authority responsible for scrutinising and supporting the work of the Metropolitan Police Service, the police force for Greater London (excluding the City of London Police area). The establishment of the MPA in 2000 marked a fundamental change in the policing of