John McKay (police officer) explained

Sir John Andrew McKay, CBE, OStJ, QPM^[1] (28 November 1912 – 24 October 2004) was Chief Inspector of Constabulary from 1970 until 1972.^[2]

McKay was educated at the University of Glasgow. He joined the Metropolitan Police in 1935. He was seconded to the Army between 1943 and 1947. After this he was appointed Assistant Chief Constable, then Deputy Chief Constable of the Birmingham City Police. He was Chief Constable of the Manchester City Police from 1959 to 1966 when he joined HM's Inspectorate of Constabulary.^[3]

Notes and References

1. https://www.thegazette.co.uk/London/issue/44600/supplement/6328/data.pdf London Gazette
2. https://www.justiceinspectorates.gov.uk/hmic/about-us/who-we-are/previous-chief-inspectors/ HMIC Profile
3. "McKAY, Sir John (Andrew)", Who Was Who, A & C Black, an imprint of Bloomsbury Publishing plc, 1920–2016; online edn, Oxford University Press, 2014 ; online edn, April 2014 accessed 15 May 2016