Senior Special Fellow à l'UNITAR. legal counsel to international civil servants. Yves Beigbeder taught on international organizations at Webster University in Geneva and St Louis, Boston University and British Columbia University in Vancouver, at Graduate Institute in Geneva and Paris Sorbonne. He is the author of many books and articles on international organizations, international administrations, international criminal tribunal, French Justice and Democracy, among which : The role and status of international humanitarian volunteers and organizations, 1991 ; Le rôle international des OING, Bruylant, 1992; Judging War Criminals: The Politics of International Justice, 1999; Rethinking International Organizations. Pathology and Promise, edited with Dennis Dijkzeul, 2002; International Public Health, 2004; International Justice Against Impunity: Progress and New Challenges, Brill/Nijhoff, 2005; Judging War Criminals: The Politics of International Justice. Foreword by Theo van Boven. 2006 ; L'OMS en péril, 2011 ; La justice française vers l’indépendance, L’Harmattan, 2013; L'Organisation Mondiale de la Santé, réalisations et échecs, Routledge, London et New York, 2017.