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 During the 1860s, the flintlock pistols that had been purchased in 1829 were decommissioned from service, being superseded by 622 Beaumont–Adams revolvers firing the .450 cartridge which were loaned from the army stores at the Tower of London following the Clerkenwell bombing.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 Service no longer operational, received much publicity for its housing of terrorism suspects in an underground complex prior to its closure in 2017. In 2004, there was a call from the Institute for Public Policy Research for more imaginative planning of police stations to aid in improving relations between police forces and the wider community. The Police Memorial Trust lists and commemorates all British police officers killed in the line of duty, and since its establishment in 1984 has erected dozens of memorials to some of those officers. Other London emergency services: Metropolitan Police Service The Metropolitan Police Service (MPS), formerly