Some legal rules are not laid down by a legislator but grow instead from informal social practices. In contract law, for example, the customs of merchants are used by courts to interpret the provisions of business contracts; in tort law, customs of best practice are used by courts to define professional responsibility. Nowhere are customary rules of law more prominent than in international law. The customs defining the obligations of each State to other States and, to some extent, to its own citizens, are often treated as legally binding. However, unlike natural law and positive law, customary law has received very little scholarly analysis. To remedy this neglect, a distinguished group of philosophers, historians and lawyers has been assembled to assess the nature and significance of customary law. The book offers fresh insights on this neglected and misunderstood form of law.

Some legal rules are not laid down by a legislator but grow instead from informal social practices. In contract law, for example, the customs of merchants are used by courts to interpret the provisions of business contracts; in tort law, customs of best practice are used by courts to define professional responsibility. Nowhere are customary rules of law more prominent than in international law. The customs defining the obligations of each State to other States and, to some extent, to its own citizens, are often treated as legally binding. However, unlike natural law and positive law, customary law has received very little scholarly analysis. To remedy this neglect, a distinguished group of philosophers, historians and lawyers has been assembled to assess the nature and significance of customary law. The book offers fresh insights on this neglected and misunderstood form of law.

This book promotes discussion and understanding of customary law and explores its continued relevance in sub-Saharan Africa. It considers the characteristics of customary law and efforts to ascertain and codify customary law, and how this body of law differs in content, form and status from legislation and common law.

Africa is the emerging continent of the twenty-first century and will continue to play a major role in the world politics and trade. At the center of the African experience is customary law, which remains one of the most important and quintessential forms of legal, political, and social organization and regulation in the sub-Saharan landscape. Using qualitative and quantitative data, Casper Njuguna, sets a framework for understanding the hybrid nature of this law and creates an appropriate new moniker for it—Neo-Autogenous Sub-Saharan Law (NAS law). This systematic and empirical analysis addresses philosophical issues like human rights, property rights, women’s rights, individual rights and freedoms, family relations, social structures, and political loyalties, which span beyond Africa and African scholars.

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 Indigenous peoples’ lands, resources and cultural heritage. He explores the challenges and opportunities for its recognition by courts and alternative dispute resolution mechanisms, including issues of proof of law and conflicts between customary practices and human rights. He throws light on the richness inherent in legal diversity and key principles of customary law and their influence in legal practice and on emerging notions of intercultural equity and justice. He concludes that Indigenous peoples’ rights to their customary legal regimes and states’ obligations to respect and recognize customary law, in order to secure their human rights, are principles of international customary law, and as such binding on all states. At a time when the self-determination, land, resources and cultural heritage of Indigenous peoples are increasingly under threat, this accessible book presents the key issues for both legal and non-legal scholars, practitioners, students of human rights and environmental justice, and Indigenous peoples themselves.