Sir John Albert Dellow CBE (5 June 1931 – 30 December 2022) was a British police officer.
Rising to Chief Inspector and attending Bramshill Police College, he transferred to Kent County Constabulary as a Superintendent in 1966.
In this post, Dellow commanded the police operation in the Iranian Embassy Siege in 1980.
[3][4] In 1982, he headed the review of Buckingham Palace security after an intruder, Michael Fagan, managed to get into the Queen's bedroom.
[8] Dellow was portrayed by Martin Shaw in a 2017 film about the embassy siege, 6 Days.