Kimberley Trapp  

BA, LLB, BCL (McGill); LLM, PhD (Cambridge)
Lecturer in Public International Law 

contact details:
Tel: +44(0)20 7679 1446

Kimberley Trapp joined the Faculty of Laws in September 2012 as a Lecturer in Public International Law, and is convenor of the ILA British Branch Seminar Series.  Prior to joining the Faculty, Kimberley was a Lecturer at Newnham College and an Affiliated Lecturer at the Faculty of Law, University of Cambridge.  Kimberley obtained a BA (philosophy), BCL and LLB from McGill University before working for several years as an attorney at Davis Polk & Wardwell (NY, Hong Kong).  Following these years of corporate practice, Kimberley returned to academia, completing her LL.M and PhD at the University of Cambridge.  During Kimberley’s doctoral studies, she clerked for Vice-President Al-Kasawneh and Judge Simma at the International Court of Justice.  Her doctoral thesis was awarded the Cambridge Yorke Prize for a dissertation of distinction, and is the basis of her OUP monograph entitled ‘State Responsibility for International Terrorism’ (2011).  Kimberley has published widely on issues relating to the use of force, State responsibility, the interaction between IHL and terrorism suppression, and the settlement of international disputes and has presented related scholarship at the Annual Meetings of the CCIL and ASIL.  

Kimberley's research interests cover a range of subject matters in Public International Law, including:

  • state responsibility;
  • the use of force in international relations;
  • international humanitarian law;
  • international terrorism;
  • the judicial settlement of disputes


  • State Responsibility for International Terrorism (Oxford University Press, 2011)
  • with E. Papastavridis (eds), Criminalité en Mer / Crimes at Sea, Hague Academy of International Law (forthcoming 2014)

Articles and Book Chapters

  • “The Interaction of the International Terrorism Suppression Regime and IHL in Domestic Criminal Prosecutions” in Jinks, Maogoto and Solomon (eds), Applying International Humanitarian Law in Judicial and Quasi-Judicial Bodies: International and Domestic Aspects, TMC Asser Press (forthcoming 2014)  
  • La Criminalité en Mer: L'Approche du Droit International, in Trapp and Papastavridis (eds), Criminalité en Mer / Crimes at Sea, Hague Academy of International Law (forthcoming 2014)
  • Self-defence in Response to Armed Attacks by Non-State Actors, in Marc Weller (ed.), OUP Handbook on the Use of Force, Oxford University Press (forthcoming 2014)
  • Terrorism and State Responsibility in Ben Saul (ed.), Research Handbook in Terrorism and International Law, Edgar Elgar Publishing (forthcoming 2013)
  • The Prohibition of Indiscriminate Attacks in an Age of Unlimited Information, in Dan Saxon (ed.), International Humanitarian Law and the Changing Technology of War, Martinus Nijhoff (2013) 153-170      
  • Holding States Responsible for Terrorism before the International Court of Justice, 3 Journal of International Dispute Settlement (2012) 1-20 (runner-up for the inaugural James Crawford Prize)
  • Smooth Runs the Water Where the Brook is Deep: The obscured complexities of Germany vItaly, 1 Cambridge Journal of International and Comparative Law (2012) 153-168 (with Alex Mills)
  • WTO Inconsistent Countermeasures - A View from the Outside, 104 American Society of International Law Proceedings (2010) 264-270
  • The Use of Force against Terrorists: A Reply to Christian J. Tams,20 European Journal of International Law (2009) 1049-1055
  • Back to Basics: Necessity, Proportionality, and the Right of Self-Defence against Non-State Terrorist Actors, 56 International and Comparative Law Quarterly (2007) 141-156
  • Can There Be International Responsibility for Failing to Prevent Terrorism?, in Responsibility of Individuals, States and Organizations: Proceedings of the 35th Annual Conference of the Canadian Council on International Law (2007)

Shorter Articles

  • R v Mohammed Gul: Are You a Terrorist if You Support the Syrian Insurgency?, EJIL: Talk!, 14 March, 2012 (2,5000 words)
  • Uses of Force against Civil Aircraft, EJIL: Talk!, 28 June, 2011 (3,000 words)

Working Papers

  • Terrorist Actors as Catalysts of International Law Development, available at SSRN:
  • Incidental Jurisdiction and the Problem of Counter-Measures 

Current Teaching
Public International Law

International Human Rights Law (convenor)
War Law (convenor)
Foundations and Principles of International Law

PhD Supervision
Dr. Trapp welcomes approaches from prospective PhD students.


page updated on 23 January, 2014

Faculty of Laws, University College London
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Telephone: 020 7679 7000