To provide for certain processes and limitations relating to the detention of certain individuals by the United States, and for other purposes.

Detainee Security Act of 2011 - Requires any administrative board or panel conducting reviews to determine the eligibility for the continued detention of a non-U.S. citizen detained on or after March 7, 2011, at the U.S. Naval Station, Guantanamo Bay, Cuba (Guantanamo) to be subject to specified restrictions, including that: (1) the detainee being reviewed shall not be represented by legal...