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 During the 1860s, the flintlock pistols that had been purchased in 1829 were decommissioned from service, being superseded by 622 Beaumont–Adams revolvers firing the .450 cartridge which were loaned from the army stores at the Tower of London following the Clerkenwell bombing.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
Police cadets in the United Kingdom which was traditionally held in Hendon, in North London, for the annual Police Cadet Competition. This involved cadets competing in a range of police activities and scenarios, in which they were competitively assessed. In 2015 the Metropolitan Police announced that the Cadet Competition was no longer to be held at Hendon due to the resizing of Hendon; some of the land was sold off for development. However, the Annual Cadet Competition continues a long tradition at the GRAVESEND public order site. 2013 also saw the launch of Junior Police Cadets capturing those young people from school Year 6 to Year