 He was initially appointed Director General of the Political Intelligence Department of the Foreign Office . He was the first Director of the Joint Intelligence Bureau at the Ministry of Defence from 1948 until 1964 , when he became the first Director General of Intelligence at the Ministry of Defence . He was knighted on 1 January 1952 , and became a Knight Commander of the Order of the British Empire in 1966 . He retired on 9 May 1966 . 
