After six hours of deliberations, a panel of six army officers ruled on 21 January that Chief Warrant Officer Lewis Welshofer was guilty of dereliction of duty but acquitted him of assault.
Welshofer was accused of putting a sleeping bag over the head of Major-General Abed Hamed Mowhoush, sitting on his chest, and using his hand to cover the general's mouth while asking him questions in 2003.
Welshofer faces up to three years in jail.
(AP)