In 1948 - 52 there was usually only one full-time MI4 officer stationed in each locality including Egypt, Mauritius, and Kenya. See also RAF Intelligence JARIC RAF Medmenham No. 1 Photographic Reconnaissance Unit RAF National Collection of Aerial Photography References Zabecki, David T. (1999). World War II in Europe: An Encyclopedia. Garland Science. External links Ministry of Defence - History of JARIC MI5 FAQ "What happened to MI1 - MI4?" The Security Service Defunct United Kingdom intelligence agencies 1940 establishments in the United Kingdom Military communications of the United Kingdom Military units and formations established in 1940 Military units and formations disestablished in 1947 War Office in World War II British intelligence services of World War II Aerial reconnaissance