The Working Group was established on 25 June 1993 by the Office of the Chief Archivist of Lithuania. The leader of the group was Dr Arūnas Bubnys, who was appointed by Gediminas Ilgūnas, the director of the Lithuanian Archive Department (today the Office of the Chief Archivist). Bubnys formed the team of the group, which later in 1995 became the Lithuanian Special Archive.