Catalogue description Admiralty: Naval Intelligence Division and Operational Intelligence Centre: Intelligence Reports and Papers

This series contains Admiralty Intelligence papers, German naval communications, Operational Intelligence Centre special intelligence summaries, special intelligence reports from Japanese and Mediterranean waters, ULTRA decrypts, essays on World War 2 by German naval staff officers, statements by German prisoners of war and intercepted enemy signals between Berlin and Tokyo. They relate to such matters as U-boat warfare, attacks on convoys, minesweeping and enemy shipping movements, together with reports by the naval intelligence division and correspondence concerning the British Naval Mission to Moscow (1941-1946). The series includes photocopies of documents cited in the official history of the intelligence services as well as a small series of message logs from the First World War.

For files of the tri-service Defence Intelligence staff see, DEFE 31

For records of the Joint Intelligence Bureau see WO 252

Records of the Government Code and Cypher School: Division within HW

Board of Admiralty, Naval Intelligence Division, 1886-1964

Board of Admiralty, Naval Staff, Naval Intelligence Division, 1912-1963

Board of Admiralty, Naval Staff, Operational Intelligence Centre, 1937-1964

From 1975 Ministry of Defence