In October 2007, Colonel Davis resigned from his position as Chief Prosecutor. He had made the policy that evidence obtained from the use of waterboarding, which he considered torture, would not be admissible as evidence in the military commissions. By this time, charges were being developed against high-value detainees, some of whom had been waterboarded in the custody of the CIA. Davis was overruled in his policy by his superiors, including William J. Haynes, II, the General Counsel for the Department of Defense.