The Optional Protocol is an international treaty that allows victims of violation of economic, social and cultural rights (ESCR), to present complaints at the international level. People who cannot access justice in the courts of their country, they can bring a complaint to the UN Committee on Economic, Social and Cultural Rights, if the country has become a party to this treaty. It is also a powerful tool for advocacy, which improves national judiciary system to secure and advance ESCR. The Optional Protocol includes three procedures: a complaints procedure, an inquiries procedure, and an inter-State complaints procedure.