The lords overturned a refusal from home secretary David Blunkett for an inquiry requested by Zahid Mubarek’s family.
He was killed aged 19 in 2000 by his racist cellmate Robert Stewart, who was convicted of murder and sentenced to life.
A Commission for Racial Equality report found 20 separate failures in management systems at Feltham, which is in west London.
Social exclusion and discrimination fuel black overrepresentation in criminal justice system, MPs find
18 June 2007
Government saves 11-year-old from forced marriage in Dhaka
09 May 2007
Government drugs policy does not work, says report
09 March 2007
100,000 drug addicts and alcoholics on benefits
12 October 2006
Youth Justice and the Youth Justice Board
26 August 2008
Substance misuse
15 August 2008
Details of government consultations
21 August 2008
Private Member Bills
25 July 2008
Government Legislation
25 July 2008