The Working Group on Arbitrary Detention (WGAD) is a body of independent human rights experts that investigate cases of arbitrary arrest and detention. Arbitrary arrest and detention is the imprisonment or detainment of an individual, by a State, without respect for due process. These actions may be in violation of international human rights law. The Working Group was established by resolution in 1991 by the former Commission on Human Rights. It is one of the thematic special procedures overseen by the United Nations Human Rights Council, and is therefore a subsidiary body of the UN.