Customary international law, although long recognized as a primary source of international law, remains replete with enigmas, both conceptual and practical. These include how to determine the existence of opinio juris, the function of the state practice requirement, the definition of jus cogens customary norms, and the relationship between customary international law and ethics. In part because of these enigmas, the subject has generated a wide-ranging literature. However, no recent book-length work has attempted to articulate a comprehensive theory of customary international law that can...
Customary international law, although long recognized as a primary source of international law, remains replete with enigmas, both conceptual and prac...
