Royal Observer Corps
In 1929 the control of the Observer Corps passed from the county police forces to the Air Ministry, although Chief Constables retained responsibility for personnel and recruitment matters. 1 March 1929 saw the establishment of the new "Headquarters of the Observer Corps" at Hillingdon House, RAF Uxbridge in the west of London, and Air Commodore Edward A D Masterman CB CMG CBE AFC RAF (Rtd) was appointed as the first commandant of the Observer Corps. "Air Cdre" Masterman held this appointment until his retirement on 1 March 1936, and was succeeded by Air Commodore Alfred Warrington-Morris CG CMG OBE AFC RAF (Rtd), who would lead the Observer Corps through the critical period during the Second World War which saw the RAF emerge bruised but victorious following the Battle of Britain of 1940.
Royal Observer Corps
The removal of Home Office involvement in the ROC from 1991 onwards resulted in those "Remnant Elements" becoming effectively a single reserve "Directly Administered Unit" within RAF Strike Command (RAFSTC). For the final four years of its existence the role of Commandant ROC became a secondary appointment held by the Senior Air Staff Officer (SASO) of No. 11 Group RAF. All remaining members of the ROC were required to remove their original ROC Group designations from their RAF uniforms, and accept moves towards changes in conditions of service during any Transition-To-War (TTW) which would make them effectively members of the Royal Auxiliary Air Force (RAuxAF), with protected rights. As a direct result, closer links were forged between the ROC and war-appointable flights of the Royal Air Force Volunteer Reserve (RAFVR).