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.
Borras
Between 1962 and 1992 there was a hardened nuclear bunker, built at Borras for No 17 Group Royal Observer Corps North Wales, who provided the field force in Western Area of the United Kingdom Warning and Monitoring Organisation and would have sounded the four-minute warning alarm in the event of nuclear war and warned the population of Wrexham in the event of approaching radioactive fallout. The building was manned by up to 120 volunteers who trained on a weekly basis and wore a Royal Air Force style uniform. After the breakup of the communist bloc in 1989, the Royal Observer Corps was disbanded between September 1991 and December 1995. However, the nuclear bunker remained and was purchased by R Jones (K-Klass) of Tyn-Twll Farm in the early 1990s and converted to a recording studio. Between the ROC vacating the premises in September 1991 and its new use as a recording studio, the building was under preparation for use as the Home Office North Wales Regional Government Headquarters (RGHQ) although it is unlikely it was ever actually activated as such, given the short timescale.