The Grotius Centre for International Legal Studies is delighted to announce that Dr Farouk El-Hosseny will join the teaching staff as Visiting Assistant Professor of International Law.

Uit onderzoek van Dagblad Parool, blijkt dat de Amsterdamse sportschool Saint & Stars zich mogelijk schuldig maakt aan arbeidsuitbuiting. ‘Als het kan worden bewezen komt je er niet makkelijk mee weg’, zegt Gerard Boot, hoogleraar Arbeidsrecht.

Legal experts, including Jens Iverson, a lecturer in international law, warned in Le Soir that any attempt by former U.S. president Donald Trump to annex Greenland would violate international law. They argue that this would remain the case regardless of recent diplomatic talks or security arguments…

Ongoing challenges such as Russia’s war of aggression against Ukraine, rising global strategic and economic competition, and accelerating climate change have major consequences for the EU and its member states.

Two researchers from the Institute of Political Science were recently awarded prizes. Claire Vergerio received the Francesco Guicciardini Prize for her book on the historical origins of the primacy of the state in international law ('best book in the historical international relations category'). In…

The world around us is changing. What does that mean for the future of Europe, on this turbulent world stage? And what does it mean for our teaching, and for the expectations that Leiden University has of its students? These were the key questions during the opening of the 2018-2019 academic year on…

Not everyone benefits from the increased flexibility in the labour market. EU migrant workers engaged at the lower end of the employment spectrum are falling behind. According to Daniel Carter, the legal system is at fault and in his PhD thesis he explains the reasons why.

Master of Laws: Advanced Studies in International Children’s Rights Outstanding Student Research Theses

On May 20th, Joost de Moor took part in a panel that examined what is (not) unique about the recent waves of climate mobilization, as well as the question of engagement with or opposition to formal global sustainability governance institutions.

Jason Rudall, Assistant Professor of Public International Law at the Grotius Centre for International Legal Studies, has published a monograph entitled 'Responsibility for Environmental Damage'.

On Thursday 8 June 2017 Melanie Fink, Postdoctoral Researcher at the Europa Institute, participated in the Legal Seminar ‘EU Law and Undocumented Migrants: Defending Rights in the Context of Detention & Deportation’.

In Montreal, the 34th Meeting of Parties on the Montreal Protocol (MOP), dealing with ozone layer damage, just ended. This protocol is ratified by all countries in the world and is very successful. Shiming Yang, a university lecturer and member of the Leiden University Global Transformations and Government…

Self-employed workers’ hours have significantly decreased during the coronavirus crisis. Their average hours worked decreased most at the start of the crisis, by more than five hours per week. And it was difficult to return to their pre-crisis hours in the quarters that followed. This is the conclusion…

EuroScience Open Forum – ESOF - is Europe’s biggest multidisciplinary and prestigious scientific conference. ESOF2022 will take place from 13-16 July 2022 and is hosted by Leiden as the European City of Science (in the Netherlands). The Kamerlingh Onnes Building is one of the locations of the ESOF and…

On Thursday 19 September, the first ILS Lunch Seminar of this academic year took place. Clare Fenwick and Ilya Kokorin gave two very insightful presentations in this very well visited edition of the Lunch Seminars.

After the kick-off on 28 November, the next ILS Lunch Seminar will take place on Monday 19 December. During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes…

On 18 January 2018, the inaugural ILS PhD Workshop took place, featuring two Interaction Between Legal Systems lectures by the invited academics Prof. Gareth Davies and Aristi Volou, as well as presentations by the six ILS PhD researchers.

The Netherlands cannot stop European labour migrants coming here. Nor does The Hague have much influence on the influx of asylum seekers. But experts believe that we should be able to reduce the need for labour migrants by using intelligent economic policies.

The first ILS Lunch Seminar of 2017 will take place on Monday 30 January. During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes are working on. During…

Dutch citizens are not opposed to additional earnings and financial gifts for people on welfare, but believe it is important that there should also be an obligation to look for a job. This was the outcome of a research project on the opinions of Dutch people regarding the implementation of welfare p…

Leiden University is going to offer two new Economics degree programmes at its campus in The Hague: the bachelor’s in Economics and Society and the master’s in Public Sector Economics. The NVAO has decided to award accreditation to both programmes, which will be taught in Dutch. The bachelor’s programme…

If we want to solve global problems, we need to know about both the theory and the practice. How does the international community make decisions about military intervention, for instance? Why is it such a complex process? Professor Herman Schaper has represented the Netherlands at the United Nations…

Predicting the collective behaviour of systems, like a large group of people electing one of the parties, is no easy task. But there’s a theory that scientists have been using for decades to do just that: the theory of Gibbs measures. Last week, mathematician Mirmukhsin Makhmudov earned his PhD for…

Three new ministries have been formed in the Netherlands: Asylum and Migration, Housing and Spatial Planning & Climate and Green Growth. Of course, this is not merely an administrative act. These ministries carry a strong and political charge and play a crucial role in shaping a government's political…

On 1 December 2020, Bernadette Muscat defended her thesis 'Insolvency Close-out Netting: A comparative study of English, French and US laws in a global perspective'. The doctoral research was supervised by Prof. M. Haentjens and Prof. B. Wessels.

A new Special Issue with Transnational Legal Theory edited by Jelena Belic, Matthew Canfield, Henning Lahmann, Rachel Griffin, and Barrie Sander, brings together a collective of perspectives to unpack the promise and perils of human rights as a vocabulary for governing digital platforms.

Four master's students from Leiden University participated in this year’s edition of the International Migration and Refugee Law Moot Court, hosted by Antwerp University. Following the verbal rounds held between 21 and 22 March, the team went through to the finals, achieving second place overall.

This is an Erasmus+ International Credit Mobility project of the Faculty of Humanities with the Ivane Javakhishvili State University (TSU) in Tbilisi.

Columnist Folkert Jensma spreekt in zijn recente NRC column over een monumentaal NJB themanummer over de Gaza-oorlog. Larissa van den Herik, hoogleraar internationaal recht, droeg hieraan bij met een NJB-artikel over de vraag of de situatie in Gaza kan worden gekwalificeerd als genocide en wat verplichtingen…

The lecture series Humanity in the Automated State continued on 9 April 2026 at Leiden Law School with Professor of Public Law, Ida Koivisto from the University of Helsinki, an expert in the digitalisation of public administration, general administrative law, and the legitimation strategies of public…

The lecture series

In a landmark ruling, the International Court of Justice says that states are obliged to protect the climate. Jolein Holtz, a climate and human rights expert, believes the Court is too vague about the impact for future generations: ‘A missed opportunity’.

How should jurisdictions, both on the national and on the supra-national level, handle the interaction between public and private law where it regards the regulation of financial markets?

Vasiliki Kosta acted as one of two expert mentors for the working group on academic freedom in the ‘Our Rule of Law Academy’.

Dr Gül Aktürk Hauser (Assistant Professor, Department of Heritage and Society, Faculty of Archaeology) and Dr Sophie Starrenburg (Assistant Professor, Grotius Centre for International Legal Studies, Leiden Law School) organised a workshop titled ‘An Interdisciplinary Perspective on Heritage Reparations:…

On 18 September 2019, Huw Llewellyn defended his thesis 'An Institutional Perspective on the United Nations Criminal Tribunals: Governance, Independence and Impartiality'. The doctoral research was supervised by Prof. N.M. Blokker and Prof. L.J. van den Herik.

That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

Freezing bacteria super fast to gain a true-to-nature image of the internal and external structure. Ariane Briegel Professor of Ultrastructural Biology came to Leiden specially to carry out this research. Leiden University is one of the few institutes in the world to have the necessary equipment. Inaugural…

Plants, algae and cyanobacteria have the amazing capacity to perform delicate photophysical and photochemical processes of light capture, excitation transfer, charge separation and catalysis in fluctuating living environments. As a consequence, photosynthetic proteins and membranes form dynamic architectures.…

Historian Joost Welten has written a book entitled 'De vergeten prinsessen van Thorn' (The forgotten princesses of Thorn). For his book, he analysed thousands of handwritten letters from the eighteenth century, mainly written in German and French. His personal mission is to visualize the daily lives…

The West has missed several opportunities to prevent the invasion of Ukraine or, at the very least, to better support the Ukraine, claims Frans Osinga, Professor by special appointment War Studies.

Klimaatverandering, geopolitieke spanningen en botsende belangen in het Arctisch gebied dwingen tot hernieuwde aandacht voor handhaving en rechtvaardigheid. Hilde Woker, gespecialiseerd in het recht van de zee, spreekt in een uitzending van Kennismakers Radio Sleutelstad over dit actuele onderwerp

Het asielbeleid blijft een hoofdpijndossier voor het kabinet. Een akkoord zou bereikt zijn waarin iedere partij een kleine concessie zou doen. De VVD gaat uiteindelijk toch niet akkoord met deze nieuwe asielwet die gemeentes kan dwingen om asielzoekers op te vangen. De VVD fractie heeft moeite met ‘dwang’…

Who holds rights to Greenland’s surrounding waters and natural resources? Which interests are at stake and for whose benefit? We put these questions to Hilde Woker, who specialises in the law of the sea in the Arctic.

The Hague Journal of Diplomacy regularly updates its digital bookshelf with recommendations of recent books on diplomacy, global affairs, and international studies.

This project looks at the current practices of marriage law in Indonesia. It examines the often ambiguous views different groups hold of marriage, from local villagers in Bengkulu to women’s activists in Jakarta, and how these relate to the development of national law on the one hand and local practices…

When former Swedish Foreign Minister Margot Wallström announced in 2014 that Sweden would become the first state to implement a feminist approach to its foreign policy, her idea was met with giggles. [1] But the concept quickly spread around the world. In May 2022, the Netherlands became the 10th state…

Voormalig demissionair staatssecretaris van Fiscaliteit en Belastingdienst Marnix van Rij gaf op 17 juni in samenwerking met universitair docent Esther Huiskers-Stoop een gastcollege over belastingrecht en duurzaamheid. Deze lezing werd op initiatief van student Darya de Wilt georganiseerd.

Physicists understand little about quantum matter, which is a building block of future quantum computers. Theorists have now discovered that black holes with ‘dreadlocks’ harbor a similarly exotic order pattern, which makes calculations on quantum matter easier. Publication in Physical Review Letter…