Situation of detainees at Guantanamo Bay, Report of the Chairperson of the Working Group on Arbitrary Detention, UN Commission on Human Rights, February 16, 2005. Excerpt:

The Chairperson of the Working Group on Arbitrary Detention and the Special Rapporteur on the independence of judges and lawyers are deeply concerned about the legal regime applied by the United States to the detainees in the Guantánamo Bay detention centre. In their view, the legal regime applied to these detainees seriously undermines the rule of law and a number of fundamental universally recognized human rights, which are the essence of democratic societies. These include the right to challenge the lawfulness of the detention before a court (ICCPR, art. 9 (4)) and the right to a fair trial by a competent, independent and impartial court of law (ICCPR, art. 14); they protect every person from arbitrary detention and unjust punishment and safeguard the presumption of innocence.

Read the full text of the report [PDF].