Rowie Stolk, PhD candidate at the Department of Constitutional and Administrative Law has been admitted as a visiting researcher to UCLA School of Law (University of California, Los Angeles) where she will stay during the first semester 2019 – 2020.

The Faculty Board has appointed Professor Ymre Schuurmans as Academic Director of the Institute of Public Law. Schuurmans is Professor of Constitutional and Administrative Law and was Head of the Department of Constitutional and Administrative Law for the past six years.

In important cases before the Court of Justice of the European Union (ECJ) in Luxembourg, judgments are preceded by an Opinion of an advocate general. These Opinions are not binding on the Court, but are highly influential in practice.

On Friday 6 October 2023, Peter Rodrigues delivered his farewell lecture ‘Ongelijkheidscompensatie in het vreemdelingenrecht’ (inequality compensation in immigration law).

A mini-seminar hosted by Reinout Vriesendorp Academiegebouw, Rapenburg 73, 2311 GJ Leiden, The Netherlands, Thursday 23 June 2016

Interest groups play an important role in democratic society.

On 30 January 2024, the Maastricht Centre for European Law, in collaboration with the Globalization and Law Network at Maastricht University Faculty of Law, hosted a seminar featuring Simona Demková from the Europa Institute of Leiden University.

In the EU Law Live podcast episode ‘Banks under stress and EU law in the latest case-law of the Court of Justice of the EU’, Barbora Budinská talks about a series of judgments concerning the ABLV Bank Latvia and its subsidiary, ABLV Luxembourg.

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’.

One of the ECSL’s most prominent activities is the ECSL Summer Course on Space Law and Policy, welcoming students at all academic levels as well as select young professionals currently active in the space or related sectors. Now in its 33rd year, the course has built a vast global network of alumni.

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.

One of ECSL’s most prominent activities is the ECSL Summer Course on Space Law and Policy, welcoming students at all academic levels as well as select young professionals currently active in the space or related sectors. Now in its 34th year, the course has built a vast global network of alumni.

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.

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.

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 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

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…

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?

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.

A one-day conference was organised by the International Institute of Air and Space Law at Leiden University on 11 May 2023, in the lead-up to the 14th Leiden-Sarin International Air Law Moot Court Competition. The topic of the conference was ‘Aviation Cybersecurity’, which was also the topic of this…

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.

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.

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 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 International Institute of Air and Space Law hosted a book launch event at the Leiden Law School on March 20, 2025, featuring the launch of two important publications in the field of air and space law.

Anmol Dhawan (24) graduated cum laude from the Advanced LLM in Air and Space Law in Leiden on 28 August 2023. He comes from Mumbai in India and did his bachelor law studies at National Law University Delhi. He has been in the Netherlands since September 2022, so over one year now.

The Manfred Lachs Space Law Moot Court competition was held in Vienna between 8 and 12 April 2024. This event was organised by the European Centre for Space Law in collaboration with the University of Vienna. The team comprised David Eagleson, Solène Flambeaux and Aleksandra Spyra, current students…

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…

On 17 November 2014, the Leiden Law School and the University of Beihang, China signed a Memorandum of Understanding.

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.

The Leiden University team representing the International Institute of Air and Space Law (IIASL) won the World Finals of the Manfred Lachs Space Law Moot Court Competition that took place in Paris on 20 September 2022.

The International Astronautical Congress (IAC) that took place last week in Paris was extremely successful for IIASL.