Fragmentation is one of the major debates within international law, but no detailed case studies have been made to show the problems that it creates, and how they can be addressed. This book asks whether the growing number of international judicial bodies render decisions that are largely consistent with one another, which factors influence this (in)consistency, and what this tells us about the development of international law by international courts and tribunals. It answers these questions by focusing on three areas of law: genocide, immunities, and the use of force, as in each of these...

The Court of Justice of the European Union has exclusive jurisdiction over European Union law and holds a broad interpretation of these powers. This, however, may come into conflict with the jurisdiction of other international courts and tribunals, especially in the context of so-called mixed agreements. While the CJEU considers these 'integral parts' of EU law, other international courts will also have jurisdiction in such cases.
This book explores the conundrum of shared jurisdiction, analysing the international legal framework for the resolution of such conflicts, and provides a...