Memorandum for William J. Haynes, II, General Counsel, Department of Defense, The President's Power as Commander in Chief to Transfer Captured Terrorists to the Control and Custody of Foreign Nations [open pdf - 5MB]
"You have asked for our Office's views on the laws applicable to the transfer of members of the Taliban militia, al Qaeda, or other terrorist organizations, who have come under the control of the United States armed forces, to other countries. We conclude that the President has plenary constitutional authority, as the Commander in Chief, to transfer such individuals who are captured and held outside the United States to the control of another country. Individuals who are detained within the United States, however, may be subject to a more complicated set of rules established by both treaty and statute. Part I of this memorandum discusses the President's constitutional authority, supported by two centuries of historical practice, to detain and transfer enemy prisoners captured in wartime. It reviews the two relevant treaties that regulate transfer - the 1949 Geneva Convention Relative to the Treatment of Prisoners of War, Aug. 12, 1949, 6 U.S.T. 3316 ('GPW'), and the Torture Convention and Other Cruel, Inhuman, or Degrading Treatment or Punishment, Apr. 18, 1987, 23 I.L.M. 1027 (entered into force June 26,1987) (the 'Torture Convention' or the 'Convention'), - and it explains that these conventions do not apply to the factual situation posed by the transfer of al Qaeda or Taliban prisoners to third countries. As you have requested, we also survey in Part II the domestic legal rules governing extradition, and in Part Ill the domestic standards that govern removal under the immigration laws."
U.S. Department of Justice: http://www.usdoj.gov