In The Rome Statute as Evidence of Customary International Law, Yudan Tan offers a detailed analysis of topical issues concerning the Rome Statute of the International Criminal Court as evidence of customary international law.

This book examines the evolution of customary international law (CIL) as a source of international law. Using the International Criminal Tribunal for the former Yugoslavia (ICTY) as a key case study, the book explores the importance of CIL in the development of international criminal law and focuses on the ways in which international criminal tribunals can be said to change the ways in which CIL is formed and identified. In doing so, the book surveys the process and substance of CIL, as well as the problematic distinction between the elements of state practice and opinio juris. By applying an inclusive positivist approach, Noora Arajärvi analyses the methodologies of identification of CIL in selected cases of the ICTY, and their normative foundations. Through examination of the case-law and the reasoning of courts and tribunals, Arajärvi demonstrates to what extent the court's chosen method of identification of CIL affects the process of custom formation and the resulting system of norms in general. The book will be of great value to researchers and scholars of international law, international relations, and practitioners with interests in customary international law.

Customary international law is the most important source of international criminal law. Fifty years after the Nuremberg trials, many convictions imposed by the tribunals for the former Yugoslavia and Rwanda are still based on customary international law alone. The International Criminal Court, by contrast, has not yet had much opportunity to give more guidance on this matter. Hence, it is worthwhile to provide an overview of the current status of custom by analysing the ad hoc tribunal’s case law on this point. Including a comprehensive synopsis of current literature and a contrast of the ad hoc tribunal’s case law with the jurisprudence of the International Court of Justice, this book offers an inclusive insight into the source’s past and future.

As the work of the International Criminal Tribunals for the Former Yogoslavia and Rwanda draws to a close, this edited collection appraises their impact. It particularly focuses on the position of judges as lawmakers within these tribunals, shedding light on the profound changes in international criminal law which these judges have instigated.

This book provides a critical introduction to the core elements of international criminal law. It does so by provoking thought on what international criminal law is, or could be, by contrasting the practice of widely recognised state-based actors and institutions such as the International Criminal Court with practices associated with non-state actors in particular citizens' tribunals. International criminal law is now established as an essential legal and institutional response to atrocity. However, it faces a series of political and practical challenges. It is vital to consider its limits and potential, as well as the ways and extent to which those limitations might be addressed. Many actors with very different visions of its nature and parameters play a role in shaping the meaning of international criminal law whether that be in official or unofficial spaces. This book explores the principles and institutions of international criminal law alongside the alternative visions of it put forward by citizens' tribunals. In so doing it encourages reflection on that law's multiple meanings and usages in order to provoke consideration of what it means, and might mean, to deploy international criminal law today.

In Judges and the Making of International Criminal Law Joseph Powderly explores the role of judicial creativity in the progressive development of international criminal law. This wide-ranging work unpacks the nature and contours of the international criminal judicial function. Employing empirical, theoretical, and doctrinal methodologies, it interrogates the profile of the international criminal bench, judicial ethics, and the interpretative techniques that judges have utilized in their efforts to progressively develop international criminal law. Drawing on the work of Hersch Lauterpacht, it proposes a conception of the international criminal judicial function that places judicial creativity at its very heart. In doing so it argues that international criminal judges have a central role to play in ensuring that modern international criminal law continues to adapt to a volatile global environment, where accountability for crimes that shock the conscience of humanity is as much needed as at any moment in recent history.

Principles of Evidence in International Criminal Justice provides an overview of the procedure and practice concerning the admission and evaluation of evidence before the international criminal tribunals. The book is both descriptive and critical and its emphasis is on day-to-day practice, drawing on the experience of the Yugoslavia, Rwanda and Sierra Leone Tribunals. This book is an attempt to define and explain the core principles and rules that have developed at those ad hoc Tribunals; the rationale and origin of those rules; and to assess the suitability of those rules in the particular context of the International Criminal Court which is still at its early stages. The ICC differs in structure from the ad hoc Tribunals and approaches the legal issues it has to resolve differently from its predecessors. The ICC is however confronted with many of the same questions. The book examines the differences between the ad hoc Tribunals and the ICC and seeks to offer insights as to how and in which circumstances the principles established over years of practice at the ICTY, ICTR and SCSL may serve as guidance to the ICC practitioners of today and the future. The contributors represent a cross-section of the practicing international criminal bar, drawn from the ranks of the Bench, the Prosecution and the Defence and bringing with them different legal domestic cultures. Their mixed background underlines the recurring theme in this book which is the manner in which a legal culture has gradually taken shape in the international Tribunals, drawing on the various traditions and experiences of its participants.

This study analyzes the methods used by international criminal tribunals when determining customary international criminal law and to consider the compatibility of these approaches with the nullum crimen sine lege principle. In this context, the following research questions are of particular importance: Is there one approach common to all international criminal tribunals, or can different approaches be detected in their jurisprudence when determining customary international law? Do international criminal tribunals regard both traditional elements of customary international law – State practice and opinio iuris – as necessary elements for the establishment of customary international law? Do international criminal tribunals argue along the lines of the International Court of Justice (ICJ), requiring a high frequency and consistency of State practice that is both “extensive and virtually uniform”?In addition, the book analyzes the evidence used by international criminal tribunals in order to establish the constituent elements of customary international. It then poses the question: Do international criminal tribunals distinguish, as defined by Schwarzenberger, between the “law-creating processes” of public international law on the one hand, and the “law-determining agencies” as a subsidiary means of determining rule of law on the other?Assuming that they exist, how can different methodological approaches to determine customary international law be assessed in light of the nullum crimen sine lege principle? Does the principle require judges to apply the traditional method to establish customary international law as being based on extensive, uniform and enduring State practice accompanied by opinio iuris? Can the principle balance the desire for justice and the specificities of law creation of the international legal order with fairness for the accused? How can the law be accessible and criminal punishment foreseeable, when the underlying legal basis for criminal convictions, namely customary international criminal law, is unwritten in nature?

Principles of International Criminal Law is one of the most influential textbooks in the field of international criminal justice. This fourth edition builds on the highly-successful work of the previous editions, setting out the general principles governing international crimes as well as the fundamentals of both substantive and procedural international criminal law. It provides a detailed understanding of the sources and evolution of international criminal law, demonstrating how it has developed, and how its application has changed. The book assesses in detail the four key international crimes as defined by the statute of the International Criminal Court: genocide, crimes against humanity, war crimes, and the crime of aggression. The new edition revises and updates the work with developments in international criminal justice since 2014. It includes substantial new material on critical perspectives on international criminal justice, the fragmentation of international criminal law, new war crimes of prohibited means of warfare, and the prosecution of crimes committed in Syria and Northern Iraq.The book retains its highly-acclaimed systematic approach and consistent methodology, making it essential reading for both students and scholars of international criminal law, as well as practitioners and judges working in the field.

International Criminal Law provides a comprehensive overview of an increasingly integral part of public international law. It complements the usual accounts of the substantive law of those international crimes tried to date before international criminal courts and of the institutional law of those courts with in-depth analyses of fundamental formal juridical concepts such as an 'international crime' and an 'international criminal court'; with detailed examinations of the many international crimes provided for by way of multilateral treaty and of the attendant obligations and rights of states parties; and with sustained attention to the implementation of international criminal law at the national level. Direct, concise, and precise, International Criminal Law should prove a valuable resource for scholars and practitioners of the discipline of international criminal law.