The International Institute of Air and Space Law is one of the leading international academic research and teaching institutes in the world, specialising in legal and policy issues regarding aviation and space activities in the broadest sense of the word.

On 30 June 2016, Eesa Fredericks is expected to defend his Ph.D.-thesis ‘Contractual Capacity in Private International Law’ in Leiden. Supervisors are prof. Sierd J. Schaafsma (Leiden) and prof. Jan Neels (Johannesburg).

The Summer School on International Humanitarian Law is designed by the Grotius Centre Kalshoven-Gieskes Forum on International Humanitarian Law. The 6th edition will take place from 4 to 8 July 2022 in The Hague. Applications are now open!

Organized by the Grotius Centre for International Legal Studies, this programme enables students and professionals from all over the world to engage in discussions on the prospects and challenges of international criminal justice. The 19th edition of the International Criminal Law Summer School will…

The main objective of the Telders International Law Moot Court Competition is to challenge students to excel in international law, consequently testing their creativity and powers of persuasion in a friendly competition. Students and academic staff throughout Europe consider participation to be a great…

On Monday, 18 January 2016 the Grotius Centre for International Legal Studies hosted a roundtable on the practice, process, strategy and impact of the amicus curiae in international criminal trials.

Study Information

In this policy brief, Dennis Broeders, Els De Busser and Patryk Pawlak discuss attribution of in cyberspace from three different perspectives: criminal law, international law and policy. Published together with EU Cyber Direct.

Graduation ceremony

The Grotius Centre for International Legal Studies is offering two internships on a full-time basis in spring 2019.

We are very happy to welcome you to Leiden Law School to spend a semester or year studying with us. Here you can find information on course registration, schedules and more.

In this lecture professor Harding considered the implications of Asia's 21st-century rise for its legal systems and our approaches to studying them in the new situation we confront in the early 21st century.

The Kalshoven-Gieskes Forum on International Humanitarian Law and the Grotius Centre for International Legal Studies hosted the second annual “International Humanitarian Law Clinic Exchange Conference”, from 8 to 14 December 2016, in The Hague. The idea to organize the conference stems from a collaboration…

How can we assist Universitas Indonesia's department of International law to improve their educational and applied research programs on Transnational Law, Asset Recovery and International Investment Arbitration, with an eye on Indonesia’s security and rule of law reform agenda and the needs of the…

Governance and Global Affairs, Law

On 30 November 2016, Cecily Rose participated in a Symposium held at the T.M.C. Asser Institute on 'A Court for the World? Trust in the ICJ 50 years after South West Africa'.

On Tuesday 17 October 2017 Alexandre Genest defended his PhD dissertation ‘Performance Requirement Prohibitions in International Investment Law’ as part of a double PhD programme at the Universities of Leiden and Ottawa. The Supervisors are Professors M.E. Koppenol-Laforce. F. Baetens (Universities…

International organisations that represent collaborations between States are becoming increasingly more powerful, and they have an increasing impact on our daily lives. For example, the European Court of Human Rights in Strasburg established that minors have a right to legal aid immediately following…

On 18 May 2011, Dr. Ben Knapen, Minister for European Affairs and International Cooperation, delivered the annual Van Vollenhoven Lecture on “Rule of Law and Development”.

The Public Prosecution Service in the Netherlands is examining the possibility to prosecute Dutch national Jitse Akse on the suspicion of the multiple murder of Islamic State fighters. As a foreign fighter Akse joined the Kurdish militia YPG in its armed struggle against the Islamic State.

The Grotius Centre for International Legal Studies, in collaboration with the Cambridge Centre for Environment, Energy and Natural Resource Governance (‘C-EENRG’, University of Cambridge) and the ESIL Interest Group (IG) on International Criminal Justice, is pleased to invite public international scholars,…

Leiden University’s Master of International Civil and Commercial Law (L.L.M.) examines the interrelated layers of hard law, soft law, and relevant case law.

In our European and International Business Law Advanced Master programme, you learn to decipher the hierarchy of European & international business law

On 12 mei 2020, Darryl Robinson defended 'Exploring Justice in Extreme Cases: Criminal Law Theory and International Criminal Law'. The doctoral research was supervised by Prof. C. Stahn.

Hart Publishing in Oxford has published the first book in a series entitled ‘Restatement of Labour Law in Europe’. This particular book deals with the question of which employees are protected by labour law (‘The concept of employee’).

Our Master Law in European and International Human Rights Law (LL.M.) looks at the various human rights protection mechanisms from a comparative perspective

The Grotius Centre for International Legal Studies, in collaboration with the ESIL Interest Group on International Criminal Justice and the Journal of International Criminal Justice (JICJ, OUP), is pleased to invite public international scholars, students and practitioners to attend a conference that…

On 9 April 2019, Yudan Tan defended her thesis 'The Rome Statute as Evidence of Customary International Law'. The doctoral research was supervised by Prof. dr. W.A. Schabas.

Are you interested in current affairs, developments in society and people? Are you highly motivated, willing to be challenged and able to go just a bit further in finding creative solutions to legal issues, then Rechtsgeleerdheid is the master’s programme for you.

On Friday, November 17, 2017, Assistant Professor Jens Iverson provided the Keynote for the annual symposium by the Minnesota Journal of International Law: Jus Post Bellum: Justice After the War.

The International Institute of Air and Space Law (IIASL) offers PhD candidates the possibility to enroll in the IIASL PhD Track. It is designed for 'external' PhD candidates (buitenpromovendi), who seek to pursue a PhD in Air Law or Space Law while honouring their professional commitments in paralle…

On Monday 30 May 2016, the Assistant High Commissioner for Protection at UNHCR, Mr. Volker Türk, delivered the Keynote Address at the Advanced Course on International Criminal Justice, Migration and Human Trafficking at the Peace Palace in The Hague.

About the book

On 8 July 2020, Andres Sarmiento Lamus defended his thesis 'The Proliferation of Dissenting Opinions in International Law'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. Y.A.A.S. Radi (UCLouvain).

This book presents concrete solutions for managing the legal risks distorting the development of various areas of EU law. It pursues an innovative and effective approach to identify legal risks, their causes at the EU level and their impacts on the functioning of the Union and its Member States. It…

Helen Duffy was appointed as the Gieskes Chair of Human Rights and International Humanitarian Law last year. As the title suggests, her research, and to a large extent her teaching, focuses on how diverse areas of international law co-apply and interrelate.

For the first time, a court has ordered a company to reduce its carbon dioxide emissions. Lawyers see it as a landmark ruling that will have far-reaching consequences for Shell and possibly also other similar companies.

On 14 April 2016, Professor Carsten Stahn, Programme Director of the Grotius Centre for International Legal Studies in The Hague, and Ambassador Bernd Borchardt, Founding Director of the International Nuremberg Principles Academy, signed a new partnership agreement on research cooperation and joint…

Jens Iverson, Assistant Professor of International Law and a Researcher in the Jus Post Bellum Project, defended his Ph.D. dissertation on 21 September 2017.