This new edition of Hugh Thirlway's authoritative text provides an introduction to one of the fundamental questions of the discipline: what is, and what is not, a source of international law. Traditionally, treaties between states and state practice were seen as the primary means with which to create international law. However, more recent developments have recognized customary international law, alongside international treaties and instruments, as a key foundation upon which international law is built. This book provides an insightful inquiry into all the recognized, or asserted, sources of international law. It investigates the impact of ethical principles on the creation of international law; whether 'soft law' norms come into being through the same sources as binding international law; and whether jus cogens norms, and those involving rights and obligations erga omnes have a unique place in the creation of international legal norms. It studies the notion of 'general principles of international law' within international law's sub-disciplines, and the evolving relationship between treaty-based law and customary international law. Re-examining the traditional model, it investigates the increasing role of international jurisprudence, and looks at the nature of international organisations and non-state actors as potential new sources of international law. This revised and updated book provides a perfect introduction to the law of sources, as well as innovative perspectives on new developments, making it essential reading for anyone studying or working in international law.

In recent years States have made more and more extensive use of the International Court of Justice for the judicial settlement of disputes. Despite being declared by the Court's Statute to have no binding force for States other than the parties to the case, its decisions have come to constitute a body of jurisprudence that is frequently invoked in other disputes, in international negotiation, and in academic writing. This jurisprudence, covering a wide range of aspects of international law, is the subject of considerable ongoing academic examination; it needs however to be seen against the background, and in the light, of the Court's structure, jurisdiction and operation, and the principles applied in these domains. The purpose of this book is thus to provide an accessible and comprehensive study of this aspect of the Court, and in particular of its procedure, written by a scholar who has had unique opportunities of close observation of the Court in action. This distillation of direct experience and expertise makes it essential reading for all those who study, teach or practise international law.

This book provides a complete overview into the work of the International Court of Justice in the last twenty years. Since 1989, the author, a former Principal Legal Secretary to the International Court of Justice, contributed frequent articles on this subject to the British Yearbook of International Law continuing the work begun by Sir Gerald Fitzmaurice in 1950. This work brings together these articles in one place for the first time, with extensive cross-references, and a thorough index and tables, making it more accessible than ever. This collection addresses all of the areas of international law that the International Court of Justice has addressed with depth and nuance. The topics considered include general principles of law, sources of law, treaty interpretation, substantive issues such as the law of the sea, state sovereignty, and state responsibility, questions of jurisdiction and competence, and questions of the Court's procedure. A comprehensive work of incredible detail, this collection is essential reading for those studying the law and procedure of the International Court of Justice, and its role at the heart of the international legal system, as well as for practitioners appearing before the Court.

This new edition of Hugh Thirlway's authoritative text provides an introduction to one of the fundamental questions of the discipline: what is, and what is not, a source of international law. Traditionally, treaties between states and state practice were seen as the primary means with which to create international law. However, more recent developments have recognized customary international law, alongside international treaties and instruments, as a key foundation upon which international law is built. This book provides an insightful inquiry into all the recognized, or asserted, sources of international law. It investigates the impact of ethical principles on the creation of international law; whether 'soft law' norms come into being through the same sources as binding international law; and whether jus cogens norms, and those involving rights and obligations erga omnes have a unique place in the creation of international legal norms. It studies the notion of 'general principles of international law' within international law's sub-disciplines, and the evolving relationship between treaty-based law and customary international law. Re-examining the traditional model, it investigates the increasing role of international jurisprudence, and looks at the nature of international organisations and non-state actors as potential new sources of international law. This revised and updated book provides a perfect introduction to the law of sources, as well as innovative perspectives on new developments, making it essential reading for anyone studying or working in international law.

In recent years States have made more and more extensive use of the International Court of Justice for the judicial settlement of disputes. Despite being declared by the Court's Statute to have no binding force for States other than the parties to the case, its decisions have come to constitute a body of jurisprudence that is frequently invoked in other disputes, in international negotiation, and in academic writing. This jurisprudence, covering a wide range of aspects of international law, is the subject of considerable ongoing academic examination; it needs however to be seen against the background, and in the light, of the Court's structure, jurisdiction and operation, and the principles applied in these domains. The purpose of this book is thus to provide an accessible and comprehensive study of this aspect of the Court, and in particular of its procedure, written by a scholar who has had unique opportunities of close observation of the Court in action. This distillation of direct experience and expertise makes it essential reading for all those who study, teach or practise international law.