The Commission on Human Rights was authorized by ECOSOC (06.1946) to call in ad hoc groups of non-governmental experts in specialized fields with the approval of the President of the Council and the Secretary-General. In March 1951 the Council invited the ILO to cooperate in the establishment of an Ad Hoc Committee on Forced Labour of not more than five independent members.
The first session of the Ad Hoc Committee was held in Geneva in October 1951. Its terms of reference include the completion of a survey and, thereafter, a study of systems of forced labour. The Committee studied the definition of forced labour embodied in the ILO Convention as well.