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 During the 1860s, the flintlock pistols that had been purchased in 1829 were decommissioned from service, being superseded by 622 Beaumont–Adams revolvers firing the .450 cartridge which were loaned from the army stores at the Tower of London following the Clerkenwell bombing.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 wearer's rank, followed by their surname. Following controversy over assaults by uniformed officers with concealed shoulder identification numbers during the G20 summit, Commissioner Sir Paul Stephenson said, "the public has a right to be able to identify any uniformed officer whilst performing their duty" by their shoulder identification numbers. The Met uniformed officer rank structure, with shoulder badge features, is as follows: The Met also has several active Volunteer Police Cadet units, which maintain their own internal rank structure. The Metropolitan Special Constabulary (MSC) is a contingent of part-time volunteer police officers and is attached to most Borough Operational Command