MPs and peers have said they may have been misled over UK troops’ use of banned interrogation methods in Iraq.
Not all troops had known “conditioning” techniques such as hooding and sleep deprivation were banned, the Joint Committee on Human Rights said.
The committee had received assurances by a minister and a senior military officer that they did know.
The use of such techniques emerged after the death of Iraqi hotel worker Baha Mousa in British custody in 2003.
The government has said the public inquiry into Mr Mousa’s death may address the concerns that were aroused.