They argue that he has been so damaged by his interrogations and prolonged isolation that he suffers post-traumatic stress disorder and is unable to assist in his own defense. His interrogations, they say, included hooding, stress positions, assaults, threats of imminent execution and the administration of “truth serums.”

....Dr. Angela Hegarty, director of forensic psychiatry at the Creedmoor Psychiatric Center in Queens, N.Y., who examined Mr. Padilla for a total of 22 hours in June and September, said in an affidavit filed Friday that he “lacks the capacity to assist in his own defense.”

“It is my opinion that as the result of his experiences during his detention and interrogation, Mr. Padilla does not appreciate the nature and consequences of the proceedings against him, is unable to render assistance to counsel, and has impairments in reasoning as the result of a mental illness, i.e., post-traumatic stress disorder, complicated by the neuropsychiatric effects of prolonged isolation,” Dr. Hegarty said in an affidavit for the defense.

...

Philip D. Cave, a former judge advocate general for the Navy and now a lawyer specializing in military law, said, “There’s nothing comparable in terms of severity of confinement, in terms of how Padilla was held, especially considering that this was pretrial confinement.”