On Tuesday 11 October, Demy Jongkind, Louise Verboeket and Veerle van Waarde gave a post-academic course (PAO) at the NetlawAcademy of Netlaw law firms dealing with recent developments related to subsidy law.

During the recent study trip that Sine Labore Nihil (the labour law study association) took to Prague, Leiden’s labour law students visited the Czech Labour Inspectorate. Miloslav Kase, the Inspectorate’s Head of Legal Affairs, gave a lecture and students had the chance to ask questions to a full panel…

Jamie Korporaal and Fieke Weber, teaching staff at the Department of Labour Law and Social Security, recently published an item in the ‘Tijdschrift voor de Procespraktijk’. The journal item entitled ‘Kort en Bondig: Arbeidsrecht’ (‘Short and Sweet: Employment Law’) informs readers of rulings passed…

Leiden University and REALaw organise a Conference and Summer Course on Europeanisation of national administrative law. This will be held from 2-4 September 2019 in the Old Observatory in Leiden. All speakers are confirmed and the programme is now published.

Jan Vleggeert is a tax specialist with an independent and critical voice in the debate on tax avoidance by multinationals. His appointment commenced on 1 October 2019.

On 13 December 2024, the yearly ‘Constitutional Law Conference’ took place at Leiden Law School. The central theme of the conference was ‘The Constitution outside the Constitution’.

Mirjam Sombroek, Aart Hendriks and Martine de Vries (LUMC) will work on mapping the ethical and legal aspects of gene therapy. The aim is to establish a best practice of how society can best deal with these therapies. For example with guidelines on how to regulate, reimburse and make these therapies…

The International Court of Justice (ICJ) has commenced hearings on Israel’s ban on UN organisation UNRWA. Larissa van den Herik, Professor of Public International Law, commented on news programma NOS Nieuws.

An international team of astronomers has shown in a laboratory at Leiden University (the Netherlands) that methane can form on icy dust particles in space. The possibility had existed for quite some time, but because the conditions in space were difficult to simulate, it was not possible to prove this…

Building more in urban areas is, in most places in the Netherlands, the smartest way to tackle the housing crisis. This is evident from research conducted by Janneke van Oorschot, published in a partner journal of Nature. Remarkably, this does not have to come at the expense of green spaces in cities.…

Between 18 and 29 March 2024, a group of 28 civil servants and policymakers from pre-accession countries participated in the Matra Rule of Law Training Programme on the Management of Borders. This event was organised and hosted by Leiden University at its campuses in Leiden and The Hague.

In 2023, a number of students from the bachelor’s, master’s and advanced master’s degree programmes won prizes for their outstanding achievements. Congratulations to the award winners and their supervisors who contributed to these successes.

German scientists and NASA have developed a bacteria-killing coating for space toilets. With this coating they hope to protect astronauts in space stations from pathogens. Professor of Biological chemistry Nathaniel Martin sheds light on the discovery: 'You don't expect nasty bacteria up there, but…

On 19 December 2019, Reza Eftekhar defended his thesis 'The Role of the Domestic Law of the Host State in Determining the ratione materiae Jurisdiction of Investment Treaty Tribunals: The Partial Revival of the Localisation Theory'. The doctoral research was supervised by Prof. E. de Brabandere.

Graduating in international law and fulfilling a childhood dream by performing your own theatre show. Alumna Fleur Verhoeff has achieved both. How did she go from studying law to the performing arts? And how does her background in international law help?

We are extremely proud to have won the Excellent Aerospace Education Award of the NLF (Netherlands Aerospace Foundation) for 2017.

On 10-11 October, the conference "The Charter's Spaces" will take place at the University of Namur. The programme has now been published.

Between 11 and 13 September 2025, the ESIL Annual Conference took place in Berlin, Germany. This year's conference unfolded on the theme 'Reconstructing International Law', attracting an unprecedented number of legal scholars from all over the world.

Leiden Law School and the Center for Constitutional Studies of the Mexican Supreme Court (CEC-SCJN) have signed a memorandum of understanding, to carry out joint activities in the field of constitutional law and children's rights.

The SRON space research institute currently located in Utrecht will be relocating to South Holland. The institute, which constructs highly advanced technological instruments for astronomy research and for research on exoplanets, will relocate to new premises adjacent to Leiden University's Science Campus.…

Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: H.M. Cuppen, S. Ioppolo

The project ‘Founding an Inclusive Space’ investigates the histories of various LGBT+ archives in the Netherlands, Germany and the United Kingdom.

This research combines archaeological, archaeometric and ethnohistorical research to study the organisation of settlement space and residence rules among the Taino Indians during the Late Ceramic Age (AD 1000-1492).

The Europa Institute was represented in all four regional finals of this year’s European Law Moot Court!

Are you a new or returning International Business Law student to the 2016-17 academic year at Leiden Law School?

How does the development of digital technologies impact society, and law/regulation within that society?

The Editorial comment in the June issue of the Common Market Law Review examines three different aspects of the rule of law in relation to the European Union. Despite, or because of, the many challenges facing the Union, these questions are of continuing importance. The Union itself is based on legal…

On Thursday 20 October 2016, the 2nd annual Common Market Law Review conference “Crossing Europe’s Borders - New approaches to migration in European law

Today, 189 out of 193 officially recognised nation-states have a written constitution, and 75% of these have been ratified since 1975. How did this worldwide diffusion of constitutions come about?

Patrick van der Meij has been appointed Professor of Criminal Law Practice at the Institute of Criminal Law and Criminology from 1 January 2024. This is an Endowed Chair established by the Professor A. E. J. Modderman Foundation, which is affiliated with Leiden University in order to boost research…

On Friday 24 June 2022, the Department of Constitutional and Administrative Law of Leiden University welcomed more than forty administrative law scholars to the first Young Administrative Law Researchers Day.

Tech company Eyeball collects images and data on young amateur football players on a large scale. But is this allowed? Bart Custers, Professor of Law and Data Science, and Gerrit-Jan Zwenne, Professor of Law and Digital Technologies, comment on the issue in ‘NRC’ newspaper.

Amino acids are the building blocks for life on earth. They may originate in space and reach the Earth via comets and meteorites. Daniël Paardekooper examined part of this hypothesis. PhD defence on 5 July.

The Student Living Room at the KOG will soon officially open its doors. All Leiden Law School staff and students are welcome to come and see this new space during the official opening event on Tuesday 23 May at 12.00 hrs. A free lunch will be provided for all, we’ll raise a toast with a glass of bubbles,…

In recent years, much research has been conducted at the Department of Labour Law on the topic of sustainability and fundamental labour rights. Linked to this field is a journal: the International Labor Rights Case Law Journal (ILaRC).

On Thursday 7 March, a group of around 40 Leiden Law students visited the EU’s Agency for the coordination of cooperation between law enforcement authorities, the former European Police Office (Europol) in the world’s legal capital: The Hague.

On Thursday 17 February 2022, a mid-term review was held for the Advanced LLM programmes Air and Space Law, European and International Business Law, International Civil and Commercial Law, Law and Digital Technologies, International Children’s Rights, European and International Human Rights Law, Public…

The IHL Clinic offers outstanding LLM candidates the chance to work pro bono on KGF projects and gain practical experience in humanitarian law in cooperation with practitioners working in the humanitarian field.

The Leiden University Green Office is pleased to announce its Spring Podcast competition -- Beyond the Safe Space -- on the theme: the Planetary Boundaries.

The long awaited fifth edition of book ‘The Law of the European Union’ (formerly Kapteyn & VerLoren van Themaat) was launched on Friday 11 January 2019 at the T.M.C. Asser Instituut, The Hague.

The December issue of the CML Rev., Vol. 53 No. 6, is now available online.

The Frits Kalshoven International Humanitarian Law Competition, organised by the Netherlands Red Cross and Belgian Red Cross-Flanders, lets students explore the legal framework governing armed conflict. Eight teams from Belgium and the Netherlands competed in the 19th edition (23–27 February 2026) in…

This week, Prof. Luuk van Middelaar (Europa Institute) publishes Alarums & Excursions: improvising Politics on the Europen Stage – a revised update of his 2017 book on the decade of EU crises.

From 29 to 30 October 2024, the Kalshoven-Gieskes Forum (KGF) and the Grotius Centre for International Legal Studies had the pleasure of hosting an inspiring authors’ workshop in The Hague for the forthcoming Research Handbook, Victims' Rights under Public International Law, edited by Dr Robert Heinsch…

Ben Van Rompuy was a guest speaker at the 138th Lunch Talk of the Global Competition Law Centre (College of Europe), which took place in Brussels on 15 January 2024.