UK PM David Cameron facing pressure to start judge-led inquiry into torture

David Cameron.

British Prime Minister David Cameron is under mounting cross-party pressure to approve a judge-led investigation into whether Britain was involved in the CIA's torture of suspects during the "war on terror".

The Prime Minister wants to wait until after an investigation by Parliament's Intelligence and Security Committee before deciding whether another inquiry is needed. But yesterday, MPs expressed doubts over whether the committee has the resources to do the job.

After last week's report by the Senate Intelligence Committee, many MPs are convinced that British security services witnessed and benefited from the CIA's torture of terrorist suspects, making them complicit even if they did not take part directly.

Watch: Analysis: CIA torture report

It emerged that Jack Straw, who was Foreign Secretary in the Blair government, has been questioned as a witness by police investigating the abduction of two Libyan dissidents in Britain who were handed over to the Gaddafi regime and tortured. The Metropolitan Police is believed to have sent a file to the Crown Prosecution Service.

Andrew Tyrie, Tory chairman of an all-party group on rendition, said: "What we are talking about here is kidnap and people being taken to places where they can be maltreated or tortured and I never thought in the 21st century that my country would be facilitating such practices, but they have done; the question is: how much?" David Davis, the Tory former shadow Home Secretary, told Sky News: "I think this needs to be a judicial inquiry ... it needs to be bigger than that [the ISC inquiry]. It needs to be completely independent of the establishment. What we want out of it is something which says to everybody this will never happen again, indeed, it becomes politically fatal for it to happen on your watch."

Yvette Cooper, the shadow Home Secretary, doubted the ISC had "the capacity and the scope" for an inquiry and it was her "instinct" that a judge-led process would be required to ensure confidence.

Norman Baker, the Liberal Democrat former Home Office minister, said: "Based on previous experiences, the ISC has not really delivered the goods. There's been a suspicion that it has been slightly too close to those who it's supposed to be overseeing."

Sir Malcolm Rifkind, the Tory chairman of the ISC, tried to allay fears that his committee would produce a whitewash, saying it would investigate "without fear or favour". He added: "If our conclusions are that either serving ministers or former ministers or MI6 or MI5 or anyone else were complicit in torture, we will say so and we will indicate the evidence that has brought us to that conclusion."