NEW YORK -- An NYPD Sergeant traveled to Guantanamo Bay to question the onetime driver of Osama Bin Laden, court documents released this week show. The NYPD sergeant questioned Salim Ahmed Hamdan about his time spent in the al-Farouq training camp before the 9-11 attacks. The questioning began in May 12, 2002 and members of the FBI took part in the questioning as well.

Hamdan "indicated that (Bin Laden) had discussed a planned operation the week before 9-11, and that several guards heard him discussing it. He named some of the guards, and identified their pictures," the court documents said. In a later interview, Hamdan identified additional photos and pointed out al Qaeda linked buildings in Kabul to the NYPD sergeant.

Details of the role of an NYPD sergeant and several FBI agents were made public in a ruling issued by a military judge. In that ruling, the judge did barred evidence obtained by interrogators in Afghanistan as a result of "highly coercive" conditions.

The ruling by Judge Keith Allred says prosecutors cannot use statements Salim Hamdan made shortly after his capture at Bagram air base and Panshir, Afghanistan. The judge is a Navy captain.

Hamdan, a former driver for Osama bin Laden, claims he endured beatings and solitary confinement in Afghanistan and Guantanamo Bay.

He pleaded innocent Monday to charges of conspiracy and supporting terrorism. He faces a maximum life sentence if convicted.