Ben Batros serves as legal officer at the Open Society Justice Initiative. Previously, he spent five years as appeals counsel at the International Criminal Court where he conducted appellate litigation and supported the work of prosecution trial teams, in particular on complex legal issues. Prior to that he worked at the Australian Attorney-General’s Department, focused on the development of regional criminal justice systems as part of Australia’s partnerships in Asia and the Pacific as well as domestic criminal justice reform, and also practiced as a litigator in Australia at Jackson McDonald. Dr Philippa Webb is a Lecturer in International Law at the Dickson Poon School of Law, Kings College London, which she joined in September 2012 after a decade in international legal practice. She served as the Special Assistant and Legal Officer to Judge Rosalyn Higgins during her Presidency of the International Court of Justice (2006-2009) and, prior to that, as the Judicial Clerk to Judges Higgins and Owada (2004-2005). She was the Associate Legal Adviser to Prosecutor Luis Moreno-Ocampo at the International Criminal Court (2005-2006). Her publications include: International Judicial Integration and Fragmentation (OUP 2013), The Law of State Immunity (3rd edn, OUP 2013) (with Lady Hazel Fox CMG QC) and, The Genocide Convention: The Travaux Préparatoires (Martinus Nijhoff 2008) (with Hirad Abtahi).