"Following the terrorist attacks of 9/11, Congress passed the Authorization to Use Military Force (AUMF), which granted the President the authority 'to use all necessary and appropriate force against those ... [who] planned, authorized, committed, or aided the terrorist attacks' against the United States. Many persons subsequently captured during military operations in Afghanistan and elsewhere were transferred to the U.S. Naval Station at Guantanamo Bay, Cuba, for detention and possible prosecution before military tribunals. […] This report provides an overview of major legal issues likely to arise as a result of executive and legislative action to close the Guantanamo detention facility. It discusses legal issues related to the transfer of Guantanamo detainees (either to a foreign country or into the United States), the continued detention of such persons in the United States, and the possible removal of persons brought into the country. It also discusses selected constitutional issues that may arise in the criminal prosecution of detainees, emphasizing the procedural and substantive protections that are utilized in different adjudicatory forums (i.e., federal civilian courts, court-martial proceedings, and military commissions)."
CRS Report for Congress, R40139