Peter Britton Tobin was a Scottish convicted serial killer and sex offender who served a whole life order at HM Prison Edinburgh for three murders committed between 1991 and 2006. Police also investigated Tobin over the deaths and disappearances of other young women and girls.

HMP Edinburgh is located in the west of Edinburgh on the main A71, in an area now known as Stenhouse, and, although never named as such, has commonly been known as Saughton Prison from the old name for the general area. The prison is situated on the edge of a predominantly residential area and has good transport and road links to the city centre, which provides good access both for local courts and prison visitors. The building of the prison began on 31 July 1914 with the first prisoner being received in 1919. The prison consists of four halls: Glenesk, Hermiston, Ingliston and Ratho.