Judicial Practice Customary International Criminal Law And Nullum Crimen Sine Lege

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?

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.

Building on an empirical analysis of the jurisprudence of the International Court of Justice and the two ad hoc tribunals for ex-Yugoslavia and Rwanda, this book sheds new light on the development of custom as a source of international (criminal) law.

3.1 The Tokyo Charter

Volume 3 addresses the direct enforcement system, namely international criminal tribunals, how they came about and how they functioned, tracing that history from the end of WWI to the ICC, including the post-WWII experiences. They address the IMT, IMTFE, ICTY, ICTR, the mixed model tribunals and the ICC. It also contains a chapter which addresses some of the problems of the direct enforcement system, namely the general, procedural, evidentiary, and sanctions parts of ICL, which is largely made of what is contained in the statutes of the tribunals mentioned above as well as the jurisprudence of the established tribunals. In addition this volume addresses national experiences with the enforcement of certain international crimes. It is divided into 4 chapters which are titled as: Chapter 1: History of International Investigations and Prosecutions (International Criminal Accountability; International Criminal Justice in Historical Perspective); Chapter 2: International Criminal Tribunals and Mixed Model Tribunals (The International Criminal Tribunal for the Former Yugoslavia; The International Criminal Tribunal for Rwanda; The Making of the International Criminal Court; Mixed Models of International Criminal Justice; Special Court for Sierra Leone; Special Tribunal for Cambodia; East Timor); Chapter 3: National Prosecutions for International Crimes (National Prosecutions for International Crimes; National Prosecutions of International Crimes: A Historical Overview; The French Experience; The Belgian Experience; The Dutch Experience; Indonesia; The U.S. War Crimes Act of 1996; Enforcing ICL Violations with Civil Remedies: The Case of the U.S. Alien Tort Claims Act); Chapter 4: Contemporary Issues in International Criminal Law Doctrine and Practice (Command Responsibility; Joint Criminal Enterprise; The Responsibility of Peacekeepers; The General Part: Judicial Developments; Ne bis in idem; Plea Bargains; Issues Pertaining to the Evidentiary Part of International Criminal Law; Penalties and Sentencing; Penalties: From Leipzig to Arusha; Victimsa (TM) Rights in International Law).

Volume 1 deals with international crimes. It contains several significant contributions on the theoretical and doctrinal aspects of ICL which precede the five chapters addressing some of the major categories of international crimes. The first two chapters address: the sources and subjects of ICL and its substantive contents. The other five chapters address: Chapter 3: The Crime Against Peace and Aggression (The Crime Against Peace and Aggression: From its Origins to the ICC; The Crime of Aggression and the International Criminal Court); Chapter 4: War Crimes, Crimes Against Humanity & Genocide (Introduction to International Humanitarian Law; Penal Aspects of International Humanitarian Law; Non-International Armed Conflict and Guerilla Warfare; Mercenarism and Contracted Military Services; Customary International Law and Weapons Control; Genocide; Crimes Against Humanity; Overlaps, Gaps, and Ambiguities in Contemporary International Humanitarian Law, Genocide, and Crimes Against Humanity); Chapter 5: Crimes Against Fundamental Human Rights (Slavery, Slave-Related Practices, and Trafficking in Persons; Apartheid; International Prohibition of Torture; The Practice of Torture in the United States: September 11, 2001 to Present); Chapter 6: Crimes of Terror-Violence (International Terrorism; Kidnapping and Hostage Taking; Terrorism Financing; Piracy; International Maritime Navigation and Installations on the High Seas; International Civil Aviation); Chapter 7: Crimes Against Social Interest (International Control of Drugs; Challenges in the Development of International Criminal Law: The Negotiations of the United Nations Convention Against Transnational Organized Crime and the United Nations Convention Against Corruption; Transnational Organized Crime; Corruption of Foreign Public Officials; International Criminal Protection of Cultural Property; Criminalization of Environmental Protection).

The International Criminal Court is at a crossroads. In 1998, the Court was still a fiction. A decade later, it has become operational and faces its first challenges as a judicial institution. This volume examines this transition. It analyses the first jurisprudence and policies of the Court. It provides a systematic survey of the emerging law and practice in four main areas: the relationship of the Court to domestic jurisdictions, prosecutorial policy and practice, the treatment of the Courta (TM)s applicable law and the shaping of its procedure. It revisits major themes, such as jurisdiction, complementarity, cooperation, prosecutorial discretion, modes of liability, pre-trial, trial and appeals procedure and the treatment of victims and witnesses, as well as their criticisms. It also explores some of challenges and potential avenues for future reform.

This book offers the first detailed analysis of, and guide to, the interpretation of international crimes defined in the Rome Statute.