In the Preamble , the Convention recalls conventions by International Labor Organisation on migrant workers : Migration for Employment Convention ( Revised ) , 1949 , Migrant Workers ( Supplementary Provisions ) Convention , 1975 and on forced labor ; Forced Labor Convention and Abolition of Forced Labor Convention as well as international human rights treaties including Convention against Discrimination in Education .
This Convention is made as a series of the international human rights law and at the `` Preamble '' of the Convention , they recall the conventions of the International Labor Organization about migrant workers and unfree labor .