Legal Consequences of Peremptory Norms in International Law

When is a norm peremptory? This is a question that has troubled legal scholars throughout the development of modern international law. In this work, Daniel Costelloe suggests - through an examination of State practice and international materials - that it is the legal consequences of a norm which distinguish it as peremptory. This book sheds light on the legal consequences that peremptory norms ha...