Jack Slipper apology. He was awarded the Lord Willis Award in 2004 for his CID work. He was diagnosed with cancer in 1999 and died 6 years later, aged 81. He was survived by his wife, Anne, and two daughters. Jack Slipper Jack Kenneth Slipper (20 April 1924 in London – 24 August 2005 in Pershore) was a Detective Chief Superintendent in the Metropolitan Police in London. He was known as "Slipper of the Yard" (referring to Scotland Yard). He was mainly known for his role in investigating the Great Train Robbery of 1963, and in tracking down Ronnie Biggs after he
Great Train Robbery (1963) the layout and operation of trains and carriages. Ultimately though, it was decided that it would be better to use an experienced train driver to move the locomotive and the first two carriages from the signals to the bridge after uncoupling the carriages containing the rest of the sorters and the ordinary mail. On the night, the gang's hired train driver (an acquaintance of Ronnie Biggs, later referred to as "Stan Agate" or "Peter") was unable to operate this newer type of locomotive; although having driven trains for many years (by then retired), he was experienced only on shunting (switching)