Admiralty
It evolved from *Admiralty Navy War Council, (1909–1912) which in turn became the Admiralty War Staff, (1912–1917) before finally becoming the Admiralty Naval Staff in 1917. It was the former senior command, operational planning, policy and strategy department within the British Admiralty. It was established in 1917 and existed until 1964 when the department of the Admiralty was abolished, and the staff departments function continued within the Navy Department of the Ministry of Defence until 1971 when its functions became part of the new Naval Staff, Navy Department of the Ministry of Defence.
History of the Ministry of Defence Police
The Ministry of Defence Police (MDP) in the United Kingdom can trace its origins back to 1686, and has gone through a number of evolutions over the centuries to achieve its present-day form. Until late 1965, the Royal Navy, British Army and Royal Air Force were controlled by separate departments: the Board of Admiralty, the Army Board and the Air Ministry respectively, each had its own Cabinet Minister. In that year it was decided that the three services should be placed under the control of one Minister of State for Defence, and the present Ministry of Defence was formed.