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…

On 11 February 2019 the Women in International Law Network, established in 2017 as an informal network for midlevel to senior female officials, experts, advisers and academics working in international law in the Netherlands, organised a panel discussion and the book launch of ‘Frontex and Human Rights’,…

Anne Aagten comments on new European plans to deal with migration in podcast on news site nu.nl

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.

Wat kan de EU doen als een lidstaat Europese waarden aan zijn laars lapt? Kunnen en moeten rechters waarden als gelijkheid, menselijke waardigheid en de rechtsstaat dan direct handhaven? Ja, oordeelde het Europese Hof van Justitie recent in het baanbrekende arrest Commissie tegen Hongarije (C-769/22…

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.

Migration and crime are in the spotlight in society. Within the Institute for Criminal Law and Criminology, research in this area has strongly developed in recent years. The concept of Crimmigration is central to this.

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.

This article examines how immigration from Central and Eastern Europe influences political support for Eurosceptic parties.

Despite being prohibited by law since 1971, race discrimination continues to exist in the Netherlands. Why is this?

Marloes van Noorloos is appointed Professor of Criminal Law and Criminal Procedure at Leiden University from 1 February 2025.

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.

Guest lecture immigration law by Secretary of State Broekers-Knol On 5 March 2020.

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…

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.

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?

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…

Making migration a key campaign issue in the recent Dutch general elections is one thing, but turning it into actual policy is another. ‘95% of Dutch immigration legislation is governed by European law’, says Emeritus Professor Peter Rodrigues in Dutch daily newspaper 'Trouw'. In short: political parties…

Mariana Gkliati participated on 4 April in the course International Human Rights offered by the SIM, Netherlands Institute of Human Rights, at the University College Utrecht.

Mariana Gkliati participated with a paper presentation at the Panel: European borders and the role of Frontex, on 29 November in Trento.

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.

De Immigratie- en Naturalisatiedienst (IND) overtreedt de wet door Syrische asielzoekers te lang te laten wachten op een beslissing, stelt Mark Klaassen, universitair docent migratierecht in reactie op onthullingen van dagblad Trouw. Door het besluit- en vertrekmoratorium beslist de IND tijdelijk niet…

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.