Distinguished Visiting Professor S Sivakumaran
Sandesh Sivakumaran is a Professor of International at the University of Cambridge; Director of the Lauterpacht Centre for International Law; and Fellow of St Edmund’s College Cambridge. He is a Senior Fellow at the Lieber Institute for Law and Warfare, United States Military Academy (West Point), Fellow of the University of Nottingham Human Rights Law Centre, and Fellow of the Centre on Armed Groups. He was previously Professor of Public International Law at the University of Nottingham, Visiting Professor at the Geneva Academy of International Humanitarian Law and Human Rights, 2022 Lieber Scholar at the Lieber Institute, non-resident research scholar at the United States Naval War College Stockton Center for International Law and has held visiting fellowships at Melbourne Law School and New York University School of Law.
Sandesh has published on a variety of topics in public international law. He is the author of The Law of Non-International Armed Conflict (Oxford University Press, 2012), which was awarded the International Committee of the Red Cross Paul Reuter Prize, the American Society of International Law Francis Lieber Prize, and the European Society of International Law Book Prize. He is one of the authors of Oppenheim’s International Law: United Nations (Oxford University Press, 2017)(with Dame Rosalyn Higgins, Philippa Webb, Dapo Akande and James Sloan), which was awarded the American Society of International Law Certificate of Merit. He is co-author of Cases and Materials on International Law (Sweet and Maxwell, 9 ed, 2020)(with David Harris) and co-editor of International Human Rights Law (Oxford University Press, 4 ed, 2022)(with Daniel Moeckli and Sangeeta Shah). He has published in leading journals including the European Journal of International Law, the International and Comparative Law Quarterly and the Human Rights Quarterly. His article on the courts of armed groups was awarded the Journal of International Criminal Justice Giorgio La Pira prize and the Antonio Cassese prize. His work has been cited by, among others, the UK, Netherlands, and Israeli Supreme Courts; the Colombian Constitutional Court; the International Criminal Court; the International Law Commission; and UN commissions of inquiry.
Sandesh advises and acts as expert for a range of states, international organizations and non-governmental organizations. He is a member of the Reading Committee of the ICRC’s Commentaries on the Geneva Conventions and Additional Protocols, a member of the advisory board of Geneva Call, and was a member of the Core Group of Experts for the Oxford Guidance on the Law Relating to Humanitarian Relief Operations in Situations of Armed Conflict. Sandesh regularly trains diplomats, members of the armed forces, and UN entities on international law and the law of armed conflict. He is a member of the Bar of the State of New York.
Prior to entering academia, Sandesh’s professional experience included: Fellow of the International Bar Association and Associate Legal Officer to Judge Mohamed Shahabuddeen at the Appeals Chamber of the International Criminal Tribunals for the former Yugoslavia and for Rwanda; Judicial Fellow to Judges Dame Rosalyn Higgins and Peter Tomka at the International Court of Justice; and Intern for former President of Ireland and UN High Commissioner for Human Rights, Mary Robinson, at Realizing Rights: the Ethical Globalization Initiative.
Sandesh holds an MA and PhD from the University of Cambridge and an LLM from New York University School of Law where he was a Hauser Global Scholar.
Professor SC Maslen
Stuart Casey Maslen has been Visiting Professor at UJ since the beginning of 2025. He is an academic and practitioner with 30 years’ experience in international human rights law, the law of armed conflict, counterterrorism law, disarmament, jus ad bellum, and the protection of civilians.
In addition to teaching at UJ, Stuart lectures at Sciences-Po in Paris, the Swedish Defence University in Stockholm, and the University of Oxford Summer School. He holds a doctorate in international humanitarian law from the University of Tilburg in the Netherlands and master’s degrees in forensic ballistics (MSc) from Cranfield University and in international human rights law (LL.M) from the University of Essex, both in the United Kingdom.
Among his recent publications are International Counterterrorism Law, published by Cambridge University Press in 2024, and Hybrid Warfare under International Law, published by Hart, also in 2024. The third edition of his legal commentary on the Anti-Personnel Mine Ban Convention was published by Oxford University Press in 2023. His first publication since becoming a Visiting Professor at UJ is The Prohibition of Torture and Ill-Treatment under International Law, which comes out in June 2025 with Cambridge University Press. This will be followed by a joint work on slavery from antiquity through to modern slavery, to be published by Ethics International Press.
Professor B Boothby
Air Commodore Bill Boothby retired as Deputy Director of Royal Air Force Legal Services in July 2011. He took a Doctorate at the Europa Universität, Viadrina, Frankfurt (Oder) in Germany and has published books, inter alia, on Weapons Law, Targeting Law, the law relating to conflict and on new and emerging technologies. Most recently with Prof Wolff Heintschel von Heinegg, he published Nuclear Weapons Law with Cambridge University Press. He has been a member of Groups of Experts that addressed Direct Participation in Hostilities and that produced the HPCR Manual of the Law of Air and Missile Warfare, the 2013 Tallinn Manual on the law of Cyber Warfare and the Leuven Manual on Peace Operations Law. He is an Honorary Professor at the Australian National University, and also teaches at the University of Southern Denmark, at the Geneva Centre for Security Policy and at the University of Johannesburg.