Jack Slipper 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 escaped from prison in 1965, although he had to leave Brazil without Biggs. Slipper was born in Ealing, west London, and educated at Little Ealing School. He left school aged 14 and worked as an electrician's apprentice until
Great Train Robbery (1963) train robbers. This group also included Roger Cordrey, a man who was a specialist in this field and knew how to rig the track-side signals to stop the train. Other associates (including Ronnie Biggs, a man Reynolds had previously met in jail) were added as the organisation evolved. The final gang who took part in the raid comprised a total of 16 men. At 18:50 on Wednesday 7 August 1963, the travelling post office (TPO) "Up Special" train set off from Glasgow Central station "en route" to Euston Station in London. It was scheduled to arrive at Euston at 03:59