This volume deals with the tension between unity and diversification which has gained a central place in the debate under the label of ‘fragmentation’. It explores the meaning, articulation and risks of this phenomenon in a specific area: International Criminal Justice. It brings together established and fresh voices who analyse different sites and contestations of this concept, as well as its context and specific manifestations in the interpretation and application of International Criminal Law. The volume thereby connects discourse on ‘fragmentation’ with broader inquiry on the merits and discontents of legal pluralism in ‘Public International Law’.

Despite the growth in international criminal courts and tribunals, the majority of cases concerning international criminal law are prosecuted at the domestic level. This means that both international and domestic courts have to contend with a plethora of relevant, but often contradictory, judgments by international institutions and by other domestic courts. This book provides a detailed investigation into the impact this pluralism has had on international criminal law and procedure, and examines the key problems which arise from it. The work identifies the various interpretations of the concept of pluralism and discusses how it manifests in a broad range of aspects of international criminal law and practice. These include substantive jurisdiction, the definition of crimes, modes of individual criminal responsibility for international crimes, sentencing, fair trial rights, law of evidence, truth-finding, and challenges faced by both international and domestic courts in gathering, testing and evaluating evidence. Authored by leading practitioners and academics in the field, the book employs pluralism as a methodological tool to advance the debate beyond the classic view of 'legal pluralism' leading to a problematic fragmentation of the international legal order. It argues instead that pluralism is a fundamental and indispensable feature of international criminal law which permeates it on several levels: through multiple legal regimes and enforcement fora, diversified sources and interpretations of concepts, and numerous identities underpinning the law and practice. The book addresses the virtues and dangers of pluralism, reflecting on the need for, and prospects of, harmonization of international criminal law around a common grammar. It ultimately brings together the theories of legal pluralism, the comparative law discourse on legal transplants, harmonization, and convergence, and the international legal debate on fragmentation to show where pluralism and divergence will need to be accepted as regular, and even beneficial, features of international criminal justice.

Despite the growth in international criminal courts and tribunals, the majority of cases concerning international criminal law are prosecuted at the domestic level. This means that both international and domestic courts have to contend with a plethora of relevant, but often contradictory, judgments by international institutions and by other domestic courts. This book provides a detailed investigation into the impact this pluralism has had on international criminal law and procedure, and examines the key problems which arise from it. The work identifies the various interpretations of the concept of pluralism and discusses how it manifests in a broad range of aspects of international criminal law and practice. These include substantive jurisdiction, the definition of crimes, modes of individual criminal responsibility for international crimes, sentencing, fair trial rights, law of evidence, truth-finding, and challenges faced by both international and domestic courts in gathering, testing and evaluating evidence. Authored by leading practitioners and academics in the field, the book employs pluralism as a methodological tool to advance the debate beyond the classic view of 'legal pluralism' leading to a problematic fragmentation of the international legal order. It argues instead that pluralism is a fundamental and indispensable feature of international criminal law which permeates it on several levels: through multiple legal regimes and enforcement fora, diversified sources and interpretations of concepts, and numerous identities underpinning the law and practice. The book addresses the virtues and dangers of pluralism, reflecting on the need for, and prospects of, harmonization of international criminal law around a common grammar. It ultimately brings together the theories of legal pluralism, the comparative law discourse on legal transplants, harmonization, and convergence, and the international legal debate on fragmentation to show where pluralism and divergence will need to be accepted as regular, and even beneficial, features of international criminal justice.

Exploring the role of the International Court of Justice in the re-convergence of international law, this book contends that the court's jurisprudence is transforming traditional concepts such as sovereignty, rights and jurisdiction and in so doing is leading a trend towards the reunification of international law.

This major extension of existing scholarship on the fragmentation of international law utilises the concept of 'regimes' from international law and international relations literature to define functional areas such as human rights or trade law. Responding to existing approaches, which focus on the resolution of conflicting norms between regimes, it contains a variety of critical, sociological and doctrinal perspectives on regime interaction. Leading international law scholars and practitioners reflect on how, in situations of diversity and concurrent activity, such interaction shapes and controls knowledge and norms in often hegemonic ways. The contributors draw on topical examples of interacting regimes, including climate, trade and investment regimes, to argue for new methods of regime interaction. Together, the essays combine approaches from international, transnational and comparative constitutional law to provide important insights into an issue that continues to challenge international legal theory and practice.

The International Law Commission was established by the UN General Assembly in 1947, in order to facilitate the progressive development and codification of international law. This is the 7th edition of this two-volume publication which sets out a general introduction to the work of the Commission, including its origin and historical background; its organisation, programme and methods of work; specific topics considered by the Commission and actions decided upon the UN; and the text of relevant multilateral conventions.