United Nations agencies also contributed to the overall bank of knowledge on trafficking by collecting data and undertaking research to better understand and improve responses to trafficking . The work included carrying out mapping studies to identify vulnerable districts ( UN-Women in India ) , compiling and maintaining trafficking statistical databases ( UNESCO and IOM ) , conducting studies and projects with or within specific sectors to advocate change ( UNESCO in Afghanistan and the Economic and Social Commission for Western Asia ) and developing databases on the jurisprudence of human rights mechanisms ( OHCHR ) or outcomes of cases involving trafficking ( UNODC ) .