John Mastel

Royston John Mastel CVO CBE (30 May 1917 – 7 April 1998) was a British police officer in the London Metropolitan Police.

Mastel was educated at Tottenham Grammar School and joined the Metropolitan Police as a Constable in 1937. He served as a pilot in the Royal Air Force Volunteer Reserve from 1941 to 1945, being commissioned from the rank of Flight Sergeant in May 1944[1] and promoted Flying Officer in November 1944.[2] Rejoining the police, he was promoted Sergeant in 1946, Inspector in 1951, and Superintendent in 1955. In 1966 he was promoted Commander and made second-in-command of No.2 District. He was appointed Commander of the Order of the British Empire (CBE) in the 1969 Birthday Honours, having been promoted Deputy Assistant Commissioner (Personnel).[3]

In 1972, he was appointed Assistant Commissioner "D" (Personnel and Training)[4][5] and in October 1972 he took over as Assistant Commissioner "A" (Operations and Administration).[6] He retired on 31 December 1976[7] and was appointed Commander of the Royal Victorian Order (CVO) in the 1977 Birthday Honours.[8]