Operational instruments of the Royal Observer Corps
The Royal Observer Corps (ROC) was a civil defence organisation operating in the United Kingdom between October 1925 and 31 December 1995, when the Corps' civilian volunteers were stood down. (ROC headquarters staff at RAF Bentley Priory stood down on 31 March 1996). Composed mainly of civilian spare-time volunteers, ROC personnel wore a Royal Air Force (RAF) style uniform and latterly came under the administrative control of RAF Strike Command and the operational control of the Home Office. Civilian volunteers were trained and administered by a small cadre of professional full-time officers under the command of the Commandant Royal Observer Corps; a serving RAF Air Commodore.
Royal Observer Corps
Organisations similar to the ROC were formed elsewhere during the Second World War, including the Ground Observer Corps, (USA), the Aircraft Identity Corps, (Canada), and the Volunteer Air Observers Corps, (Australia). However, unlike the Royal Observer Corps, most of these organisations had been disbanded by the end of the 1950s.