Major Sir John Frederick Ferguson CBE QPM CStJ DL (23 August 1891 – 27 May 1975) was a senior British police officer.
He passed out from the Royal Military College, Sandhurst, was commissioned into the Durham Light Infantry on 14 February 1912,[1] and was immediately posted to the North-West Frontier of India.
[citation needed] Ferguson retired from the Army in 1933[14] and joined the Metropolitan Police, being appointed Chief Constable in the Commissioner's Office on 1 November 1933.
On 1 September 1935 he was promoted to Deputy Assistant Commissioner and took command of No.4 District (South London).
[22] In 1961, he was appointed, along with Lord Bridges, to investigate the theft of Goya's portrait of the Duke of Wellington from the National Gallery.