Defense requested a “DuBay” hearing to obtain additional relevant evidence related to whether SSG Bales was exposed and how we had affected.
Dr Remington Nevin

From Wikipedia, the free encyclopedia
United States v. DuBay, 17 USCMA 147, 37 CMR 411, was a 1967 case which established procedure in courts martial for holding hearings to determine issues raised collaterally which require findings of fact and conclusions of law. Such hearings are commonly referred to as DuBay hearings, and the case is cited in the rules of the United States Court of Appeals for the Armed Forces.