Prosecutors have already excluded statements that Mohammed made after his capture when he was held by the CIA in overseas prisons and subjected to brutal treatment including waterboarding before his transfer in 2006 to Guantanamo, the Times reported.

But the trial judge Lieutenant Colonel Michael Schrama has concluded that Mohammed's subsequent interrogations in 2007 at Guantanamo were also inadmissible.

Schrama cited an "unbroken continuation of the CIA’s psychological conditioning and severe coercion," and also found that FBI agents intentionally failed to tell Mohammed that he had a right to be silent and to consult a lawyer. (Reporting by AFP)