Communications and Intelligence Records
This group of records is concerned with defence communications and intelligence, mainly for the period during and after the Second World War.
Postal and telegraph censorship records are in DEFE 1.
Some teleprinter messages based on coded radio transmissions from enemy forces are in DEFE 3.
Directorate of Forward Plans' records are in DEFE 28.
Registered files of the Defence Intelligence Staff are in DEFE 31 and DEFE 61.
Relations with the media are dealt with in DEFE 53.
Intelligence assessments reports and memoranda in are DEFE 60, DEFE 62, DEFE 63 and DEFE 64.
Reports and papers from intelligence conferences and working parties are in DEFE 65.
DEFE 66 contains miscellaneous documents from the Joint Intelligence Bureau and the early days of DIS.DEFE 60
Joint Intelligence Bureau, Directorate of Scientific Intelligence, 1950-1964
The Joint Intelligence Bureau was established in August 1945 by the Chiefs of Staff to conduct intelligence studies on foreign countries as had been found necessary during the war. In particular JIB was responsible for intelligence of concern to more than one armed service or civil department. It produced and studied intelligence on areas such as the economic and industrial war potential of countries, their static and coastal defences, air defences, etc. With the unification of the three services within the Ministry of Defence in 1964, JIB's functions were replaced by the work of the Defence Intelligence Staff (DIS).
After the war, arrangements were also made by the Chiefs of Staff for scientific and technical intelligence within each service to be instituted. Each service intelligence directorate created a scientific section (civilian) and a technical section (military). The heads of each section formed, respectively, the Joint Scientific Intelligence Committee (JSIC) and the Joint Technical Intelligence Committee (JTIC); in practice the two sat together as JS/JTIC.
The Directorate of Scientific Intelligence (DSI) was formed in April 1950 by amalgamating the three service scientific intelligence sections (JSIC) whilst JTIC continued to function separately although permanently chaired by the Director of Scientific Intelligence. DSI was responsible for collecting scientific intelligence especially in the fields of electronics and electrical engineering, guided weapons and scientific orders of battle. In 1954 DSI was absorbed into JIB which was organised into two divisions; Scientific Intelligence and Economic Intelligence. In 1957 an Atomic Energy Intelligence Division was added. With the demise of JIB in 1964, DSI became part of DIS but its title became expanded to the Directorate of Scientific and Technical Intelligence (DSTI).
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