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 During the 1860s, the flintlock pistols that had been purchased in 1829 were decommissioned from service, being superseded by 622 Beaumont–Adams revolvers firing the .450 cartridge which were loaned from the army stores at the Tower of London following the Clerkenwell bombing.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 Acts, meaning that they are not police officers. Metropolitan Police officers have legal jurisdiction throughout all of England and Wales, including areas that have their own special police forces, such as the Ministry of Defence, as do all police officers of territorial police forces. Officers also have limited powers in Scotland and Northern Ireland. Within the MPD, the Met will take over the investigation of any serious crime from the British Transport Police and Ministry of Defence Police, if it is deemed appropriate. Terrorist incidents and complex murder enquiries will almost always be investigated by the Met, with the assistance