Gen Martins said retaining the conspiracy charges against the September 11 suspects could leave the prosecution open to "legal challenge" and cause "uncertainty and delay". However, Guantánamo Bay's "convening authority" – a branch of the Pentagon – said it would be "premature" to drop the conspiracy charges, hoping that the Supreme Court might reinstate their legality.

Richard Kammen, the lead counsel for Abd al-Rahim al-Nashiri, who was convicted in Yemen over the bombing of USS Cole but is also facing conspiracy charges at Guantánamo, said the government had seriously undermined Gen Martins's position as chief prosecutor. "The sub-context of this is, 'Who's in charge?' And to what extent does Gen Martins have any real authority in this case, other than to give speeches?" said Mr Kammen.

He added that preserving the conspiracy charges could open the door to an appeal against all the charges being faced by the September 11 co-conspirators and al-Nashiri. "If one of the main charges was conspiracy, and that was reversed, you would expect the appellate court to recognise that so impacted the rest of the trial that any other conviction would have to be reversed as well," he said.

Gen Martins has indicated that he plans to press ahead with his request by petitioning the military judge in the September 11 trial to strike out conspiracy as a separate charge.

That would present the judge, Col James Pohl, 61, with the unenviable choice of either denying the requests of both defence and prosecution lawyers, or overruling his court's own convening authority.

Col Morris Davis, a former Guantánamo chief prosecutor who resigned in 2007 in protest at the Pentagon meddling in the tribunals, said the dispute between two major government departments undermined the credibility of the tribunals.

He suggested that the government was clinging to the conspiracy charges because they were needed in cases against many of the detainees.

SOURCE HERE