The Royal Commission into Aboriginal Deaths in Custody (RCIADIC) (1987–1991), also known as the Muirhead Commission, was a Royal Commission appointed by the Australian Government in October 1987 to Federal Court judge James Henry Muirhead, QC, to study and report upon the underlying social, cultural and legal issues behind the deaths in custody of Aboriginal and Torres Strait Islander people, in the light of the high level of such deaths in the 1980s.