This highly original work demonstrates the fundamental role of customary law for the realization of Indigenous peoples' human rights and for sound national and international legal governance. The book reviews the legal status of customary law and its relationship with positive and natural law from the time of Plato up to the present. It examines its growing recognition in constitutional and international law and its dependence on and at times strained relationship with human rights law. The author analyzes the role of customary law in tribal, national and international governance of...