Alejandro Valencia Villa is a Colombian lawyer dedicated to the promotion and defense of Human Rights and Humanitarian Law since 1989. He is currently an independent consultant in human rights, humanitarian law and transnational justice and is a member of the academic committee of the Masters’ program on Human Rights at the Universidad Santo Tomás de Bogotá. Previously he was a consultant to the Office of the United Nations High Commissioner for Human Rights, both for its office in Bogota and to various projects in Chile, Ecuador, Guatemala, Mexico, Paraguay, Peru and the Dominican Republic. He has also been called as an expert witness before the Inter-American Court of Human Rights. He was general counsel to the Truth Commission of Ecuador and was a consultant to the Commission for Truth and Justice of Paraguay and the Commission of Truth and Reconciliation in Peru. He was also in charge of the Special Investigation Team of the Comisión de Esclarecimiento Histórico of Guatemala. He was the first National Director of Information Service and Processing of Complaints at the Defensoría del Pueblo in Colombia and was a lawyer at the Center for Justice and International Law in Washington D.C. as well as at the Comisión Andina de Juristas Seccional Colombiana (today it is called Comisión Colombiana de Juristas). He has published several books on human rights and humanitarian law, holding the title of author, editor or compiler.