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Durham Law School

Staff Profiles

Dr Gleider I Hernández

Associate Professor (Reader) in Public International Law in Durham Law School
Deputy Director, Global Policy Institute, Durham Law School
Deputy Director of the Global Policy Institute
Member of the Human Rights Centre

Contact Dr Gleider I Hernández (email at


Gleider I Hernández is, from 1st October 2016, Reader in Public International Law at Durham Law School and Deputy Director of the Durham Global Policy Institute. 

Originally from Canada, Gleider took a D.Phil from Wadham College, Oxford in 2010. Previously, he read for an LL.M at Leiden University (the Netherlands) and for BCL and LL.B degrees at McGill University (Canada). His doctoral thesis was published in May 2014 by the Oxford University Press, as a monograph entitled The International Court of Justice and the Judicial Function, which was shortlisted for the Peter Birks Prize for Outstanding Legal Scholarship. His second book, International Law, will be published in 2017, also by the Oxford University Press.

Gleider's research interests lie within the general area of public international law, and particularly relate to international legal theory (nature and sources of international law), international dispute settlement, and the law and practice of international institutions. He also has an interest in how specialised areas of international law (eg international criminal law, international environmental law, international investment law, and the law of armed conflict) interact with general international law.

Gleider is a Member of the Academic Review Board of the Cambridge Journal of International and Comparative Law, the Co-ordinating Committee of the International Legal Theory Group of the European Society of International Law, and General Editor of Oxford International Courts of General Jurisdiction (Oxford Scholarship Online). Gleider is also a Member of the International Group of Experts who have jointly authored the 2nd edition of the Tallinn Manual on the International Law applicable to Cyber Operations (Cambridge University Press, 2016). Gleider occasionally engages in legal consultancy; he presently serves as Special Assistant to the President of the Arbitral Tribunal seated in the ICSID arbitration Pey Casado and Foundation President Allende v. Republic of Chile. He is also a Member of the Legal Action Committee of the group, a non-governmental organisation decidated to challenging injustice through innovative legal strategy.

From October 2015, Gleider is an Early Career Research Leadership Fellow for the Arts & Humanities Research Council, on a project entitled 'Constructing Authority in International Law'. He also serves as Junior Faculty with the Harvard Institute for Global Law and Policy. 

In September and October 2016, Gleider will be a Visiting Senior Fellow at the TMC Asser Institute in The Hague. Previously, he has also been a Visiting Fellow at the Faculty of Law, McGill University, and a Visiting Fellow and Expert Associate at the Amsterdam Centre for International Law, in the context of the ERC-funded SHARES Project.

Prior to arriving in Durham, he served as Associate Legal Officer at the International Court of Justice (2007-2010), acting from 2008-2010 as Law Clerk to Judges Bruno Simma and Peter Tomka (then Vice-President). At the Law Faculty of the University of Oxford, Gleider worked as a Graduate Teaching Assistant, acting as Tutor in Public International Law (2005-2007), and Teaching Fellow at the Environmental Change Institute (2006-2007); as Senior Editor of the Oxford University Commonwealth Law Journal (2006-2007); and as Convenor of the Public International Law Discussion Group (2005-2006). Gleider has also practised as a barrister and solicitor, in public and administrative law, at the law firm Fasken Martineau DuMoulin LLP (Montreal, Canada), until 2004.

Gleider is fully fluent in English, French and Spanish, and is conversational in Dutch.

Selected Grants

  • 2015: Constructing Authority in International Law: Critical Reflections (£191838.73 from Arts and Humanities Research Council)
  • 2012: Judicial Conversations: The Role of Judiciaries in Resolving International Conflicts. (£3385.00 from Modern Law Review)


Authored book

Book review

Chapter in book

  • Berman, Sir F.D. & Hernández, G.I. (2018). Article 42. In The Statute of the International Court of Justice: A Commentary. Zimmermann, A., Tomuschat, C., Oellers-Frahm, K. & Tams, C. Oxford University Press.
  • Hernández, G.I. (2018). Systematicity and the Sources of International Law: A Co-Constitutive Relationship? In The Oxford Handbook on the Sources of International Law. Besson, S. & d'Aspremont, J. Oxford University Press.
  • Hernández, G.I. (2017). Effectiveness. In Fundamental Concepts in International Law. d'Aspremont, J. & Singh, S. Edward Elgar.
  • Hernández, G.I. (2017). Federal States: A New Paradigm for International Responsibility. In The Practice of Shared Responsibility. Nollkaemper, A. & Plakokefalos, I. Cambridge University Press. 3.
  • Hernández, G.I. (2017). The Responsibility of the International Legal Academic: Situating the Grammarian in the "Invisible College". In International Law as a Profession. Nollkaemper, A., d'Aspremont, J., Werner, W. & Gazzini, T. Cambridge University Press.
  • Hernández, G.I. (2016). International Judicial Lawmaking. In Research Handbook on International Law-Making. Brölmann, C. & Radi, Y. Cheltenham: Edward Elgar. 200-221.
  • Hernández, G.I. (2015). Drone Strikes and International Humanitarian Law. In The Protection of Non-Combatants During Armed Conflict and Safeguarding the Rights of Victims in Post-Conflict Society: Essays in Honour of Joakim Dungel. Ambach, P., Bostedt, F., Dawson, G. & Kostas, S. Brill NV.
  • Hernández, G.I. (2015). Interpretative Authority and the International Judiciary. In Interpretation in International Law. Bianchi, A., Peat, D. & Windsor, M. Oxford: Oxford University Press. 166-188.
  • Hernández, G.I. (2014). Article 23. In Le Pacte de la Société des Nations: Commentaire article par article. Kolb, R. Pedone.
  • Hernández, G.I. (2014). Article 24. In Le Pacte de la Société des Nations: Commentaire article par article. Kolb, R. Pedone.
  • Hernández, G.I. (2014). Interpretation. In International Legal Positivism in a Post-Modern World. d'Aspremont, Jean & Kammerhofer, Jorg. Cambridge University Press. 317-348.
  • Hernández, G.I. (2013). Federated Entities in International Law: disaggregating the federal state?. In Statehood and Self-Determination: Reconciling Tradition and Modernity in International Law. French, D. Cambridge: Cambridge University Press. 491-512.
  • Hernández, G.I. (2013). The Interaction between Investment Law and the Law of Armed Conflict in the Interpretation of Full Protection and Security Clauses. In Investment Law within International Law: An Integrationist Perspective. Baetens, F. Cambridge University Press.
  • Sloan, J. & Hernández, G.I. (2013). The Role of the International Court of Justice in the Development of the Institutional Law of the United Nations. In The Development of International Law by the International Court of Justice. Tams, C.J. & Sloan, J. Oxford: Oxford University Press. 197-235.
  • Hernández, Gleider I. (2012). Delagoa Bay Railway Arbitration. In Max-Planck Encyclopaedia of Public International Law. Wolfrum, Rüdiger Oxford: Oxford University Press. 3: 1-7.
  • Hernandez, Gleider I. (2012). Effects of Territorial Change. In Max-Planck Encyclopaedia of Public International Law. Wolfrum, Rüdiger Oxford: Oxford University Press. 9: 850-856.
  • Simma, Bruno & Hernandez, Gleider I. (2011). Legal Consequences of an Impermissible Reservation to a Human Rights Treaty: Where Do We Stand?. In The Law of Treaties beyond the Vienna Convention. Cannizzaro, Enzo. Oxford Oxford University Press. 60-85.
  • Hernandez, Gleider I. (2011). Non-State Actors from the Perspective of the International Court of Justice. In Participants in the International Legal System: Multiple Perspectives on Non-State Actors in International Law. d'Aspremont, Jean. Abingdon, Oxon: Routledge Cavendish. 140-164.
  • Tomka, Peter & Hernández, Gleider I. (2011). Provisional Measures in the International Tribunal for the Law of the Sea. In Coexistence, Cooperation and Solidarity—Liber Amicorum Rüdiger Wolfrum. Matz-Lueck, Nele, Voeneky, Silja, Stoll, Tobias, Hestermeyer, Holger, Roeben, Volker, Seibert-Fohr, Anya & Koenig, Doris. Leiden: Brill Academic Press NV. II: 1763-1787.
  • Hernandez, Gleider I. (2010). On Multilingualism and the International Legal Process. In Select Proceedings of the European Society of International Law. Ruiz-Fabri, Helene, Wolfrum, Ruediger & Gogolin, Jana Oxford: Hart Publishing. 2: 441-460.

Journal Article


  • Schmitt, M.N. General Editor, Vihul, L., Akande, D., Blumbergs, B., Brown, G., Duchaine, P.A.L., Gill, T., von Heinegg, W.H., Hernández, G.I., Housen-Couriel, D., Huang, X., Jensen, E., Kozik, A., Kreß, C., Kittichaisaree, K., McCormack, T., Nakatani, K., Spector, P., Watts, S. & Rona, G. (2017). Tallinn Manual 2.0 on the International Law Applicable to Cyber Operations. Cambridge University Press.

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