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 During the 1860s, the flintlock pistols that had been purchased in 1829 were decommissioned from service, being superseded by 622 Beaumont–Adams revolvers firing the .450 cartridge which were loaned from the army stores at the Tower of London following the Clerkenwell bombing.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
Organisation and structure of the Metropolitan Police Service in Southwark and is maintained by current serving police officers. The Film Unit provides operational officers to ensure security for film companies and the general public. It is part of the Film London Partnership which is supported by the Department of Culture, Media and Sport, the Mayor Of London and Film London. Organisation and structure of the Metropolitan Police Service The Metropolitan Police Service of Greater London is organised into four main directorates, each with differing responsibilities. These are Frontline Policing (formally Territorial Policing), Met Operations (formerly Specialist Crime & Operations), Specialist Operations and six civilian staffed support departments under