HM Prison Doncaster, is a Category B men's private prison, located in the Marshgate area of Doncaster in South Yorkshire, England. The prison is operated by the Serco.HistoryDoncaster Prison was built on the site of Doncaster Power Station, and opened in 1994. Management of the prison was originally contracted out by the Home Office to Premier Prison Services Ltd, a joint venture between Serco and US company Wackenhut Corrections. In 2005, Serco bought out Wackenhut and now runs the prison alone.In 1999, the then Home Secretary, Jack Straw, was criticised for awarding Doncaster Prison a Charter Mark, when it emerged that Doncaster had the worst suicide record of any prison in England and Wales. Jack Straw defended his decision as an "unfortunate coincidence of timing".In 2004, Her Majesty's Chief Inspector of Prisons accused Serco of "institutional meanness" at Doncaster Prison, and described conditions there as "squalid". Four years later, an unannounced inspection of the prison found inmates sleeping in toilets because of overcrowding.The prison todayClassified as a 'local remand' prison, Doncaster can hold 1,145 inmates as of August 2007, considerably more than its original design envisaged. Accommodation at the prison comprises three houseblocks, each houseblock has 4 wings and each wing can hold a maximum of 90 prisoners. The Health Care Centre has 29 beds for in-patients on one floor with a further 36 beds on the lower floor for enhanced workers.