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
Ronnie Biggs travelled with their two sons to Paris to join Biggs. In 1966, Biggs fled to Sydney, where he lived for several months before moving to the seaside suburb of Glenelg in Adelaide, South Australia. By the time Biggs and his family arrived in 1966, they had spent all but £7,000 (equivalent to £ in 2019) of his £147,000 share of the train robbery proceeds: £40,000 (equivalent to £ in 2019) on plastic surgery in Paris; £55,000 (equivalent to £ in 2019) paid as a package deal to get him out of the UK to Australia; and the rest on legal