The charity Medical Justice, which works to improve the health of immigration detainees, saw a brief reference to the man's death in a 2012 report by the prison inspectorate into Harmondsworth and made a freedom of information request to obtain it.
The trust's statement came before the release of a tranche of reports by the school inspectorate, Ofsted, into Birmingham schools, and a statement in the Commons by the education secretary, Michael Gove, that is expected to propose a raft of measures to end covert religious education.
Disability hate crime is "overlooked" and "under-reported", a joint inspectorate review into police, probation and the Crown Prosecution Service in England and Wales found.
The short consultation is to be accompanied by the publication next week of a report by the Inspectorate of Constabulary into the effectiveness of current stop-and-search laws.
The Director of Public prosecutions has now ordered an investigation by Her Majesty's Inspectorate of Constabulary into the way the case was handled by prosecutors.
The prime minister has been praised for parts of her record as home secretary, where she passed a law against coercive control in relationships and held a nationwide inquiry by Her Majesty's Inspectorate of Constabulary into the treatment of domestic violence victims by police.
Rod Morgan Chief inspector of probation Morgan has controversially suggested that five separate inspectorates of the criminal justice system - police, courts, probation, prisons and the crown prosecution service - be merged into a single body.
These local arrangements would be overseen by national inspectorates.
The Police and Justice Bill proposes to merge the Prisons Inspectorate with four other inspectorates, those of police, probation, court administration and the Crown Prosecution Service.
The public sector, particularly in Britain, is awash with inspectorates and performance targets.
