On 12 March 2009, in an op-ed piece in "The Guardian", the analyst Timothy Garton Ash called for Mohamed's claims of torture and MI5 collusion to be referred to the Director of Public Prosecutions. He said that any other decision "will inevitably be interpreted as a political cover-up." On 10 February 2010, the UK Court of Appeal ruled that material held by the UK Foreign Secretary must be revealed. "MI5 knew that Binyam Mohamed, the former Guantanamo detainee, was being tortured by the CIA, a Court of Appeal judgment has revealed." The court opinion noted: