Hirad Abtahi is the first Legal Adviser of the Presidency of the International Criminal Court (ICC), where he has also acted as Chef de Cabinet in the Immediate Office of the President. Prior to joining the ICC, he served the Chambers of the UN International Criminal Tribunal for the former Yugoslavia (ICTY), particularly in the Milosevic trial. Hirad Abtahi was also a legal consultant with the Geneva based International Commission of Jurists, on behalf of which he advised the ICTY Registry on issues such as the relocation of victims and witnesses, the conditions of detention of accused persons and the enforcement of sentences in third countries. He has lectured and published in English, French, and Persian on human rights, humanitarian law, and international criminal law. This has included teaching at The Hague Academy of International Law's 2008 winter session. He has a Diplôme d'études approfondies in international law and has been educated in Iran, France, Canada and England.

Silvana Arbia is the Registrar of the International Criminal Court. After gaining experience as a judge and prosecutor in Italy, she made her international début as a Senior Trial Attorney at the International Criminal Tribunal for Rwanda where she has also worked as Chief of Prosecutions. She obtained her master's degree in law from the University of Padua in Italy in 1976 and, while working, continued her training in order to specialise in European law (at the Academy of European Law in Florence) and international law (at The Hague Academy of International Law). She undertook additional training at the René Cassin International Institute of Human Rights in 1989 and at the Canadian Human Rights Foundation in 1995. She has also been a consultant with the non-governmental organisation CRIC.

M. Cherif Bassiouni is a Distinguished Research Professor of Law at DePaul University, where he has taught since 1964, and the President of the International Human Rights Law Institute (since 1990). He is also the President of the International Institute of Higher Studies in Criminal Sciences, Siracusa, Italy (since 1988) and the Honorary President of the International Association of Penal Law (President 1989-2004) and holds the position of non-resident Professor of Criminal Law at The University of Cairo (since 1996). He was a Guest Scholar at the Woodrow Wilson International Center for Scholars in Washington, D.C. in 1972, Visiting Professor of Law, New York University Law School in 1971 and Fulbright-Hays Professor of International Criminal Law, the University of Freiburg, Germany in 1970, and is a frequent lecturer at universities in the U.S. and abroad. His legal education was in Egypt, France, Switzerland and the United States. In addition, he received several honorary degrees. He is the author of 32 and editor of 47 books on international criminal law, comparative criminal law, human rights, and U.S. criminal law; and the author of 240 articles published in law journals and books in the U.S. and other countries, many of which have been cited by international and national courts.

Dr. Olympia Bekou is Associate Professor and Head of the International Criminal Justice Unit of the Nottingham Human Rights Law Centre. A qualified lawyer, she specialises in international criminal law with particular expertise in national implementing legislation for the ICC. Olympia has provided research and capacity building support for 63 States, through intensive training to more than 75 international government officials and drafting assistance to Samoa (with legislation enacted in November 2007), Fiji and Jamaica. She is responsible for the National Implementing Legislation Database (NILD) of the ICC Legal Tools Project and has researched and taught extensively worldwide. She has undertaken CMN missions to several countries, including the DRC.

Jon Bing has been a Professor in Information Technology Law at the Norwegian Research Center for Computers and Law, University of Oslo since 1988. He has been a consultant to numerous national and international organizations and is a member of the European Commission DG XIII's Legal Advisory Board (LAB). His field of expertise includes intellectual property, media law, data protection and telecommunications law. He has also assisted in the development of legal information systems in Norway and other countries including Bulgaria, Portugal, Tanzania and the former Yugoslavia. He has authored numerous academic publications and fiction. 

Gilbert Bitti is Senior Legal Adviser to the Pre-Trial Division of the International Criminal Court (ICC). He has been a member of the French Delegation during the ICC negotiations in the Ad Hoc Committee (1995), Preparatory Committee (1996-1998), Rome Conference (1998) and Preparatory Commission (1999-2002). Before that, he was Counsel to the French Government at the European Court of Human Rights (1993-2002). He is also a former Assistant Professor at the Faculty of Law in Paris. Bitti is the author of numerous publications on the ICC and he speaks regularly at academic conferences on international criminal justice. 

J. Peter Burgess serves as Research Professor at the International Peace Research Institute, Oslo (PRIO), where he is Editor in Chief of the review Security Dialogue (since 2001) and Leader of PRIO's Security Programme (since 2004). Dr. Burgess has held positions as a Research Fellow at Volda College (Norway), at the European University Institute in Florence, Italy, as a Jean Monnet Fellow in the Department of History and Civilisation (1998-1999) and in the Robert Schumann Centre for Advanced Studies (1999-2000). Between 2000 and 2001, Burgess worked as an Associate Professor at Volda College and is, since 2001, a Professor at the Centre for Development and the Environment (SUM) at the University of Oslo (Cultural Studies and Philosophy).

Arne Willy Dahl is Judge Advocate General for the Norwegian Armed Forces, and in that capacity responsible for penal prosecution in military cases and for legal advice in summary punishment cases. Since 1982, he has taken positions as a lecturer at the Army Academy, Judge Advocate for Eastern Norway, District Attorney (Public Prosecutor) in Oslo, Head of the Legal Services of the Norwegian Armed Forces, and Prosecutor at the Office of the Director for Public Prosecutions with special responsibility for war crimes. He has written "Håndbok i militær folkerett" (a handbook on military international law) and is currently President of the International Society for Military Law and the Law of War.

Professor Dinstein is Professor Emeritus of International Law at Tel Aviv University where he formerly held the posts of President, Rector and Dean of Law. Professor Dinstein is currently a member of the Institute of International Law. He is President of Israel's national branch of the International Law Association and of the Israel United Nations Association. He has served as Chairman of the Israel national branch of Amnesty International and as a member of the Executive Council of the American Society of International Law. He is a member of the Council of the San Remo International Institute of Humanitarian Law. Professor Dinstein is Editor of the Israel Yearbook on Human Rights and has published extensively in the field of international law.

Jon Elster is Robert K. Merton Professor of Social Science at Columbia University and holder of the Chaire de Rationalité et Sciences Sociales at the Collège de France. He has published numerous books, among the most recent of which are Ulysses Unbound: Studies in Rationality, Precommitment, and Constraints (Cambridge, 2002), Closing the Books: Transitional Justice in Historical Perspective (Cambridge, 2004), Explaining Social Behavior: More Nuts and Bolts for the Social Sciences (Cambridge, 2007), and Reason and Rationality (Princeton, 2008).

James A. Goldston is the founding Executive Director of the Open Society Justice Initiative, an operational arm of the Soros foundations network that promotes rights-based law reform worldwide. The Justice Initiative pursues international litigation, advocacy and research to address a wide range of problems, including mass atrocity crimes, statelessness, racial discrimination, barriers to free expression, excessive pre-trial detention, and corruption linked to exploitation of natural resources. In 2007-08, Goldston served as Coordinator of Prosecutions and Senior Trial Attorney at the Office of the Prosecutor of the International Criminal Court in The Hague, where he oversaw litigation in all cases involving the Office of the Prosecutor, including with respect to the situations in Darfur, Democratic Republic of Congo, and Central African Republic. Previously, as Legal Director of the Budapest-based European Roma Rights Center, Goldston spearheaded the development of ground-breaking civil rights cases before the European Court of Human Rights and United Nations treaty bodies. He was lead counsel in the decade-long litigation culminating in the landmark 2007 judgment of the Court in DH v. Czech Republic, which for the first time found a nationwide systemic practice of discrimination in breach of the European Convention. Goldston has also served as Assistant United States Attorney in the Southern District of New York, Director General for Human Rights of the Mission to Bosnia-Herzegovina of the Organization for Security and Cooperation in Europe, researcher for Human Rights Watch, and Lecturer in Law at Columbia Law School.

Richard Goldstone is a former justice of the Constitutional Court of South Africa and was the first Chief Prosecutor of the International Criminal Tribunals for the Former Yugoslavia and for Rwanda. He currently chairs a committee to advise the United Nations on appropriate steps to preserve the archives and legacy of the International Criminal Tribunals for the former Yugoslavia and Rwanda. Justice Goldstone was appointed by the Secretary-General of the United Nations to the Independent International Committee which investigated the Iraq Oil for Food program. Justice Goldstone was also co-chairperson of the International Task Force on Terrorism established by the International Bar Association; director of the American Arbitration Association; a member of the International Group of Advisers of the International Committee of the Red Cross; and national president of the National Institute of Crime Prevention and the Rehabilitation of Offenders (NICRO).

Hanne Sophie Greve is Vice President of the Gulating High Court, Norway; and President of the Council of Europe Group of Experts on Action against Trafficking in Human Beings. She has previously served, inter alia, as an Expert in the UN Commission of Experts for the Former Yugoslavia established pursuant to UNSC resolution 780 of 6 October 1992 (1993-94); and Judge at the European Court of Human Rights (1998-2004). In the United Nations she has held office as a UNHCR assistant protection officer (1979-1981, duty station Bangkok) and as a mediator for the UN Transitional Authority in Cambodia (1992-beginning of 1993, duty station Phnom Penh). She has had several consultancies in and lectured extensively on international law (human rights, refugee law and criminal justice).

Dr. Fabricio Guariglia is Senior Appeals Counsel, Office of the Prosecutor, International Criminal Court (ICC). Dr. Guariglia has previously served as Appeals Counsel, Office of the Prosecutor, ICTY and a member of the Argentine ICC delegation to the Rome Conference. His academic appointments include the positions of visiting fellow at the London School of Economics, where he taught international law and international criminal law, Permanent Adjunct Professor of Criminal Law and Procedure at the Faculty of Law of the University of Buenos Aires, and Visiting Professor at the University of Münster. He has taught numerous courses and spoken at conferences on the problems of international criminal law, comparative criminal law and human rights. Dr. Guariglia has published extensively in the field.

Wolfgang Kaleck is the Sec­re­tary Gen­er­al and co-foun­der of the European Center for Constitutional and Human Rights (ECCHR), a lawy­er spe­cial­iz­ing in crim­i­nal law, who has estab­lished an in­ter­na­tio­n­al rep­u­ta­tion as an ad­vo­cate for hu­man rights. Af­ter com­plet­ing his law de­gree in Bonn in 1990, Kaleck served as a le­gal in­tern at the Comis­sion de Dere­chos Hu­manos de Gu­ate­mala. He founded the law firm Kaleck.Hum­mel.Recht­san­wälte in 1991, following which he worked as a spe­cial­ist so­lic­i­tor in crim­i­nal law. Since 1998, he has been the attorney of the Koali­tion der Straflosigkeit, which fights to hold Ar­gentinean mil­i­tary of­fi­cials ac­count­able for the mur­der and dis­ap­pear­ance of Ger­mans dur­ing the Ar­gen­tine dic­ta­tor­ship. 

Judge Hans-Peter Kaul has been a Judge at the International Criminal Court since 2003. In 2006, he was re-elected for a second term. He is a member of Pre-Trial Chamber II, currently seized with the situation in Uganda, the Central African Republic and Kenya. On 11 March 2009, he was elected as Second Vice-President of the International Criminal Court for a period of three years. Before his election as ICC Judge, he was a diplomat at the German Federal Foreign Office. From 1996-2003, he was Head of the German delegation and chief negotiator in the process leading to the establishment of the International Criminal Court. In November 2008, he received the Honorary Degree of Doctor of Laws, Faculty of Law from the University of Cologne. Judge Hans-Peter Kaul has published extensively in the field of public international law in general and international criminal law in particular.

Columbia College in New York City (1972); University of Chicago Law School (1978); Associate at Fried, Frank, Harris, Shriver & Jacobson in New York City (1978 to 1982) (extensive pro bono litigation on behalf of Haitian and Cuban refugees); Instructor (1982-1983) and Adjunct Professor (1983-1984) at the University of Miami School of Law; Associate at Kurzban, Kurzban & Weinger in Miami (1983-1984); Assistant Attorney General of the State of New York (1984-1990); Legal Adviser (1990 to 2004) and Senior Legal Adviser, International Justice Project (since 2004), International Secretariat, Amnesty International, London.  He has been responsible for Amnesty International's efforts to establish and support the International Criminal Court and its work on other international justice issues, including other international criminal courts, universal jurisdiction, amnesties, immunities and rule of law. 

Erkki Kourula serves as Judge at the International Criminal Court. Judge Kourula has a PhD in international law from the University of Oxford. He has held various research positions in international law, including international humanitarian law and human rights, and has acted as a professor of international law. His experience includes working as a district judge in Finland dealing with criminal cases. Judge Kourula followed closely the developments leading to the establishment of the ICTY and ICTR and was actively involved in the negotiations of the Rome Statute (1995-1998) as head of the Finnish Delegation to the Preparatory Committee and as head of the Finnish Delegation to the Rome Conference on the Establishment of an International Criminal Court. From 1998 to 2002, Judge Kourula has participated in many international conferences, contributed to publications and written articles on international law, including victims' issues.

Claus Kress (Dr. jur. Cologne; LL.M. Cantab.) is Professor for Criminal Law and Public International Law. He is Director of the Institute for Criminal Law and Criminal Procedure at Cologne University where he holds the Chair for German, European and International Criminal Law as well as International Peace and Security Law and the Law of Armed Conflict. His prior practice was in the German Federal Ministry of Justice on matters of criminal law and international law. Since 1998 he represents Germany in the negotiations regarding the International Criminal Court. He was member of the Expert Group on the German Code of Crimes under International Law (2000/2001). He acted as War Crimes Expert for the Prosecutor General for East Timor (2001), as Head of the ICC's Drafting Committee for the Regulations of the Court (2004) and as a sub-coordinator in the ongoing negotiations on the crime of aggression.

David Luban is University Professor and Professor of Law and Philosophy at Georgetown University. He received his B.A. from the University of Chicago and Ph.D. in philosophy from Yale University. He has held visiting appointments in law at Harvard, Stanford, and Yale Law Schools, and visiting appointments in philosophy at Dartmouth College and the University of Melbourne; in 1982 he was a visiting scholar at the Max Planck Institutes in Frankfurt and Hamburg. In addition, Luban has been a fellow of the Woodrow Wilson International Center for Scholars and held a Guggenheim Fellowship.  Luban has published numerous books and articles, most recently International and Transnational Criminal Law (with Julie R. O'Sullivan and David P. Stewart) and Legal Ethics and Human Dignity. He writes on legal ethics, legal theory, international criminal law, just war theory, and, most recently, US torture policy.

Mr. Méndez serves as Special Adviser on Crime Prevention to the Prosecutor of the International Criminal Court. Mr. Méndez is a member of the boards of directors of the Center for Justice and International Law, Global Rights, and the Open Society Justice Initiative. He is on the board of advisors of the Social Science Research Council's Conflict Prevention and Peace Forum, and the advisory council of the American Bar Association Center for Human Rights. He has taught International Human Rights Law at Georgetown Law School and at the Johns Hopkins School of Advanced International Studies, and he teaches regularly at the Oxford Masters Program in International Human Rights Law in the United Kingdom.

Dr. Alexander Muller is the Founding Director of the Hague Institute for the Internationalisation of Law. He holds a PhD from Leiden University and is on the editorial board of the Hague Journal on the Rule of Law, International Organizations Law Review and Hague Colloquium on Fundamental Principles of Law Series. He has previously served as Special Adviser on External Relations to the Registrar at the International Criminal Court and Senior Legal Adviser and Head of the Legal Department of the Registry of the ICTY. Dr. Muller is the author and editor of several volumes on international law.

Erik Møse serves as judge in the Norwegian Supreme Court. Judge Møse has previously served as Vice President (1999 to 2003) and President of the ICTR (2003-2007). He participated in the drafting of Protocols 6 to 11 of the European Convention on Human Rights and pleaded cases before the European Court and Commission of Human Rights. He chaired the Committee which elaborated the draft act on incorporation of human rights conventions into Norwegian law. Judge Møse graduated from the University of Oslo and had post-graduate studies in Geneva. Since 1981, he has been lecturing at Oslo University. He is a Fellow at the University of Essex (UK) and has published extensively in the field of human rights.

Gro Nystuen is Chair of the Council on Ethics for the Norwegian Government Pension Fund -- Global. She is Dr. juris and Associate Professor at the Norwegian Centre for Human Rights at the University of Oslo. Dr. Nystuen has been in the Norwegian Foreign Service since 1991. She chaired the Government Petroleum Fund's Advisory Commission on International Law until November 2004 when it was replaced by the Council on Ethics and was also a member of the Graver Committee which proposed the ethical guidelines for the Petroleum Fund. She has been Chair of the Council since its establishment in 2004. She also lectures at the Norwegian Defense Staff College.

William Pace is the Executive Director of the World Federalist Movement - Institute for Global Policy. He has served as the Convenor of the Coalition for an International Criminal Court since it was founded in 1995 and is a co-founder and steering committee member of the International Coalition for the Responsibility to Protect. He previously served as the Secretary-General of the Hague Appeal for Peace, the Director of the Center for the Development of International Law, and the Director of Section Relations of the Concerts for Human Rights Foundation at Amnesty International, among other positions. He is the President of the Board of the Center for United Nations Reform Education and an Advisory Board member of the One Earth Foundation, as well as the co-founder of the NGO Steering Committee for the United Nations Commission on Sustainable Development and the NGO Working Group on the United Nations Security Council. He is the recipient of the William J. Butler Human Rights Medal from the Urban Morgan Institute for Human Rights and currently serves as an Ashoka Foundation Fellow. Mr. Pace has authored numerous articles and reports on international justice, international affairs and UN issues, multilateral treaty processes, and civil society participation in international decision-making.

Jelena Pejic is Head of Project on the Reaffirmation and Development of International Humanitarian Law established by the International Committee of the Red Cross (ICRC) in October 2002. She also serves as a Legal Adviser at the ICRC's Legal Division in Geneva responsible, among other things, for issues related to terrorism and international humanitarian law. Prior to joining the ICRC, she was a Senior Program Coordinator at the Lawyers Committee for Human Rights in New York (now Human Rights First), responsible for the Committee's work on issues of international criminal justice, including the establishment of a permanent International Criminal Court. Ms. Pejic holds an LL.M. degree from Columbia University Law School and a law degree from Belgrade University Law School, where she was a lecturer in Public International Law and International Relations. She has written and presented extensively on various issues of international humanitarian law, human rights law and criminal law.

Robert Petit was International Co-Prosecutor for the Extraordinary Chambers in the Courts of Cambodia (2006-2009). He is a war crimes prosecutor in Canada, having served as a crown prosecutor in Montreal for eight years. From 1996 to 1999, he was a lawyer in the Office of the Prosecutor of the International Criminal Tribunal for Rwanda. Between 1999 and 2004, he was legal advisor for the United Nations Interim Administration Mission in Kosovo, a prosecutor for the Serious Crimes Unit of the United Nations Mission of Support to East Timor, and prosecutor for the Special Court for Sierra Leone.

Joseph Rikhof has received a BCL, University of Nijmegen, The Netherlands; a LL.B, McGill University; and a Diploma in Air and Space Law, McGill University.
He teaches the course International Criminal Law at the University of Ottawa. He is Senior Counsel, Manager of the Law with the Crimes against Humanity and War Crimes Section of the Department of Justice, Canada. He was a visiting professional with the International Criminal Court in 2005 while also serving as Special Counsel and Policy Advisor to the Modern War Crimes Section of the Department of Citizenship & Immigration between 1998 and 2002.
His area of expertise lies with the law related to organized crime, terrorism, genocide, war crimes and crimes against humanity, especially in the context of immigration and refugee law. He has written a large number of articles exploring these research interests and has lectured on the same topics in North and South America, Europe, Africa, the Middle East, Australia and New Zealand.

Anthony P. V. Rogers was admitted as a Solicitor, England and Wales, on 11 January 1965. He was commissioned as Captain in the Army Legal Services in 1968 and retired as Director of Army Legal Services in the rank of Major General in 1997. He was appointed OBE in January 1985. His army legal practice included advising ministers, officials, commanders and staffs on military law, criminal law and the law relating to the conduct of military operations; Parliamentary work, e.g. the Armed Forces Acts and subordinate legislation; drafting subordinate legislation for developing countries; teaching military law and the law of war.

Professor William A. Schabas is director of the Irish Centre for Human Rights at the National University of Ireland, Galway, where he also holds the chair in human rights law. He is also a Global Legal Scholar at the University of Warwick School of Law. Professor Schabas holds BA and MA degrees in history from the University of Toronto and LLB, LLM and LLD degrees from the University of Montreal, as well as honorary doctorates in law from Dalhousie University and Case Western Reserve University.  Professor Schabas has published widely on international human rights law and is editor-in-chief of Criminal Law Forum, the quarterly journal of the International Society for the Reform of Criminal Law. In 2009, he was elected President of the International Association of Genocide Scholars. He is also the President of the Irish Branch of the International Law Association.

James Silk is Clinical Professor of Law at Yale Law School, where he directs the Allard K. Lowenstein International Human Rights Clinic. He is also executive director of the Law School's Orville H. Schell, Jr. Center for International Human Rights. He was formerly the director of the Robert F. Kennedy Memorial Center for Human Rights in Washington, D.C. After completing law school, he was an attorney at the Washington law firm of Arnold & Porter, where his pro bono work included representing a Virginia death-row inmate in his appeals. Before attending law school, Professor Silk was editor, policy analyst, and senior writer for the U.S. Committee for Refugees. He has taught English in Shanghai, China. Professor Silk has a B.A. in Economics from the University of Michigan, an M.A. in the Humanities from the University of Chicago, and a J.D. from Yale.

Professor Emeritus Triffterer is former Dean of the University of Salzburg, Faculty of Law and is still lecturing international criminal law. He is the Director of the annual Salzburg Law School on International Criminal Law, Humanitarian Law and Human Rights Law and the Editor of the Commentary on the Rome Statute of the International Criminal Court. Moreover he is a distinguished expert of forty years' standing in the field of international criminal law. From 2000 till 2006 he was Chairman of the Independent Commission of the Council of Human Rights for the states of Salzburg and Upper Austria and President of the Austrian Research Institute for Post War Justice, Vienna. 

Lijun Yang is an associate professor in the International Law Research Center of the Chinese Academy of Social Sciences, and a senior research fellow of the China Law Centre in the Erasmus University Rotterdam. She has focused on issues of international criminal law for a number of years, in particular on international criminal tribunals, with several publications. She worked as a visiting professional in Chambers of the International Criminal Court in 2005 and as a legal expert in the Office of the Prosecutor of the International Criminal Court in 2006. She is one of the authors of the book 'Commentaries on the Rome Statute of the International Criminal Court' published in China. She holds an LL.M. degree from Peking University, China.

Criminal Trial Judge. Professor of Procedural Criminal Law for under-graduate and post-graduate courses at the Faculty of Law, University of São Paulo (USP), Brazil; Master and Doctor in Procedural Law (USP): Specialist in Economic and European Penal Law (Faculty of Law, University of Coimbra, Portugal and the Brazilian Institute of Criminal Science (IBCCrim). Member of the Latin American Group for Studies in International Criminal Law organized by the Konrad Adenauer Foundation and coordinated by Prof. Dr Kai Ambos. Member of the Directive Council of the Revista Brasileira de Ciencias Criminais (Brazilian Magazine of Criminal Science) since 2002. Coordinator of the Department of International Relations of the Brazilian Institute of Criminal Science since 2007 and coordinator of the Human Rights Collection published by Editora Forum.