After more than seven years as Managing Editor of Common Market Law Review, preceded by 22 years as Associate Editor and three years as Secretary to the Editors, Alison McDonnell will be retiring in December 2022.

On 10 October 2018 Maarten Aalbers presented his PhD chapter on the application of state aid law to the professional sports sector at the 8th International PhD Students' Conference on Competition Law at the University of Bialystok.

On Thursday 7 and Friday 8 December 2017, Leiden University’s Hazelhoff Center for Financial Law and the European University Institute in Florence jointly organized a PhD workshop in Leiden.

On 24 May, Iyiola Solanke, Jacques Delors Professor in EU Law at the University of Oxford's Faculty of Law and Fellow of Somerville College, gave the annual Europa Lecture organised by Europa Institute in Leiden Law School's historic Lorentz Lecture Hall. Her lecture was entitled ‘A decolonial approach…

On 19-20 October 2023, Europa Institute’s Simona Demkova and Melanie Fink, together with Giulia Gentile (Essex Law School), co-hosted an Expert Roundtable on the topic of ‘The Future of EU Public Law in the Age of Artificial Intelligence,’ in the context of the Digital Constitutionalism (The DigiCon…

On 10 June 2021, Merinda Stewart defended her thesis 'Freedom of Overflight: A Study of Coastal State Jurisdiction in International Airspace'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon en Prof. J.J. Rijpma.

This article on private active cyber defense by Dennis Broeders is part of a special issue of the Journal of Cybersecurity, based on a selection of contributions taken from the 2019 Conference on Cyber Norms organized by The Hague Program for Cyber Norms.

On 12-13 April Rick Lawson took part in the event 'Democracy in Europe', organised by the Europaeum and hosted by the University of Bologna.

On 16 November 2018 Armin Cuyvers presented some legal strategies to soften the much criticized absolutist approach to autonomy by the European Court of Justice in Achmea. His main argument was that, as a general principle, autonomy can and should be weighed against other general principles.

A delegation of the Child Law Department has attended the World congress on family law and children’s rights in Dublin, from 4-7 June. This congress organised once in every four years was hosted by prof. Ursula Kilkelly (University College Cork). Over 600 people attended the congress; professionals…

On the 28th of January 2019 Beryl ter Haar gave an introductory lecture on EU labour law concerning collective redundancies and working time. Both are core issues of this year's case for the Hugo Sinzheimer Moot Court Competition.

This book provides a comparative analysis of the process of breach across ten different European jurisdictions by identifying and elaborating a number of key analytical themes through which the different systems can be compared and evaluated.

Research conducted by the Department of Child Law and Health Law at Leiden University concerns the legal position of the child at both the national and international level.

Het Internationaal Strafhof krijgt veel kritiek op haar tanende invloed als het gaat om gerechtigheid in Oekraïne en Palestina. Larissa van den Herik, hoogleraar internationaal publiekrecht, sprak met Trouw: ‘Internationaal recht is altijd in ontwikkeling en is altijd imperfect.’

The article deals with the influence of the Agreement on the Free Movement of Persons between Switzerland and the EU on the international tax separation, more specifically on the tax separation of tax deductions for natural persons.

The newly established Luxembourg Centre for European Law held its inaugural conference on 10-11 October 2025, exploring the theme of “European Union law and values in a changing world”. Martijn was invited to speak about the relationship between European values and democracy.

On Wednesday 28 September 2022, the Opening Ceremony of the European Law LL.M. took place on campus at Leiden Law School. Following Dr Ben Van Rompuy and Professor Jorrit Rijpma’s warm words of welcome for the incoming students, Dr Vasiliki Kosta presented two student prizes from the preceding academic…

How did disability become a global concern? In this project we will identify the contribution of international agencies, governmental and non-governmental organizations and, just as importantly, disabled people themselves, to the IYDP and by showing the connections, interactions and entanglements between…

On 13 and Friday 14 July 2017 the International Congress took place in Porto, Portugal. The conference was bilangual with simultaneous translations between English and Portuguese/Spanish. In total there were about 350 participants from 23 different countries, however, most of the participants came from…

Political scientist Corinna Jentzsch received an NWO Veni grant for her research on the conditions of collaboration between militias and state forces and its consequences for safety and political order.

This book presents an understanding of the concept of Countering Violent Extremism from a critical terrorism studies perspective using case studies from different countries while examining the issues it raises.

Darinka Piqani visited the Law Faculty of the University of Tirana (Albania) on 16-20 January 2023 and lectured on the transparency and the right to information in EU law. These lectures were held in the context of the Research Expertise from the Academic Diaspora (READ) Fellowship that Dr Piqani holds…

Currently, the bill ‘Wet versterking waarborgfunctie Awb’ (strengthening the guarantee function of the Dutch General Administrative Law Act) is in preparation. The bill is intended to strengthen the human dimension in the execution and administration of justice.

Prosecutor Karim Khan has asked the Pre-Trial Chamber at the International Criminal Court in The Hague to issue arrest warrants against Israeli Prime Minister Benjamin Netanyahu. Larissa van den Herik, Professor of Public International Law, discusses the case on Dutch radio programme ‘Nieuws en Co’.

Every year, the Netherlands and Belgium Red Cross organize the Frits Kalshoven International Humanitarian Law Moot Court Competition, which brings together students from both Dutch and Belgian universities.

Het internationaal recht lijkt in het licht van de gebeurtenissen in Gaza onder druk te staan. Het NRC publiceerde een groot artikel waarin zes experts internationaal recht, waaronder Larissa van den Herik, hoogleraar internationaal recht, werden geïnterviewd over de toekomst van de internationale r…

The political parties in the running to form a Dutch cabinet are looking into solutions to curb the influx of refugees. The plan is to designate refugee accommodation as a crisis. But is it as simple as that? Mark Klaassen, Assistant Professor in European law, discusses this on Dutch current affairs…

Ekaterina Pannebakker, Associate Professor of Private International Law, has won first prize in an international essay competition.

On Tuesday 30 May 2017 Jorrit Rijpma, Associate Professor at the Europa Institute, together with his colleagues Prof. Thomas Spijkerboer (Free University) and Dr. Maarten den Heijer (University of Amserdam), delivered a key note address at the Nordic Asylum Law Seminar in Reykjavik, Iceland.

On Monday 22 January 2024, the University of Florence hosted the conference 'Artificial Intelligence, between Ethics and Law'. Organised by the Department of Legal Sciences, the conference brought together leading experts to discuss the rapidly evolving landscape of artificial intelligence (AI) and…

Together with Pepijn Tuinier and Thijs Brocades Zaalberg, Sebastiaan Rietjens researched the role of trust in an international intelligence cooperation.

In this article, the authors analyse two major factors that deepen informality, namely multipolar geopolitics and the rise of non-state actors.

On 12 September 2024, the official ceremony opening the academic year 24-25 for students of the European Law master’s programme took place at Leiden Law School, organised by the Europa Institute.

Mass claims are increasingly common in the Netherlands. Branda Katan, Professor by special appointment in Corporate Law, spoke to news website NU.nl about the chances of their success: ‘A lot of time and money goes into these cases.’

On 14 and 15 September, the 'Lobbying the Courts' workshop took place in Paris. This was an interdisciplinary workshop in which researchers from different disciplines came together to brainstorm on whether, how, and when interest groups focus on the judicial process and the courts in their lobbying…

The Department of Constitutional and Administrative Law of Leiden University has published a collection of research essays on the separation of powers. This collection addresses the main question of whether the historically developed combination of concepts of democratic legitimacy and the separation…

Together with College of Europe Professors Sieglinde Gstöhl and Simon Schunz, Joris Larik edited an interdisciplinary special issue for the Journal of European Integration on the theme 'The European Union and the Governance of Contested Global Spaces in an Era of Geopolitics'.

Christa Tobler, Professor of European law, attended and spoke on the implications of the UK Supreme Court’s ruling for EU non-discrimination law in the case For Women Scotland Ltd (Appellant) v The Scottish Ministers (Respondent) in London.

Dr. Moritz Jesse, Associate Professor at the Europa Institute, presented his paper ‘Building Bridges or Erecting Walls? – The Application of Equal Treatment and Non-Discrimination in Europe ‘ at the annual meeting of the Law and Society Association.

On 2 December, Roel Becker and Joyce Esser, both PhD candidates at the Department of Constitutional and Administrative Law, gave a lecture for their colleagues and the students of Res Publica, the master’s association Constitutional and Administrative Law. In the lecture, they paid attention to the…

On 1 December 2023, Fatma Çapkurt was appointed as deputy chair of the State Committee on the Rule of Law.

New edited volume by Mies Grijns (VVI), Hoko Horii (KITLV/VVI), Sulistyowati Irianto (Universitas Indonesia) and Pinky Saptandari (Airlangga University).

Hoogleraar Internationaal recht bij het Grotius Centre for International Legal Studies, Larissa van den Herik is in augustus 2024 beëdigd als rechter-plaatsvervanger bij de Rechtbank Den Haag.