New rules adopted by the US Congress and Barack Obama has forbidden the use of testimony obtained through cruel treatment or torture. It comes as 9/11 suspects Khalid Sheikh Mohammed and his co-defendants appear for a hearing at Guantanamo Bay, Cuba.
General Mark Martins, the chief prosecutor, said the commission provides many of the same protections that defendants would get in civilian court. "I'm confident that this court can achieve justice and fairness," he said.
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The man was taken early this morning to a south London police station where he remains in custody.
The Chancellor faces tough talks to build a Government while also dealing with the challenge from a resurgent far right.
Watch John McDonnell's speech at Labour Party conference 2017 live as he speaks to Brighton the audience from 12.15pm.