This book presents concrete solutions for managing the legal risks distorting the development of various areas of EU law. It pursues an innovative and effective approach to identify legal risks, their causes at the EU level and their impacts on the functioning of the Union and its Member States. It…

Constitutional and administrative law covers a broad area of law. It provides the rules with which issues in society can be solved by government authorities.

The increase in the European Union's executive powers in the areas of economic and financial governance has thrown into sharp relief the challenges of EU law in constituting, framing, and constraining the decision-making processes and political choices that have hitherto supported European integration.…

On 1-2 November, Professor Luuk van Middelaar spoke at the Academic Conference “EU Constitutional Imagination: Between ideology and utopia” at the University of Copenhagen.

In the past years access to EU law has been significantly enhanced via services such as EUR-Lex. This development not only allows for easy retrieval of individual legal acts, but for collecting information about the evolution of EU law in the aggregate as well.

Jaroslaw Kantorowicz, assistant professor at the Institute of Security and Global Affairs, isolated the reaction of the public to the potential breach of constitutional fiscal rules from the reaction of other players, such as the opposition, media and civil society organizations.

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?

Constitutional and administrative law is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University. This programme looks closely at the interaction between national and European law.

On 26 May 2023 the European Constitutional Law Review (EuConst) organized a symposium on constitutional change in Europe.

On 10 March 2023, the Amsterdam Centre for Tax Law (ACTL) of the University of Amsterdam (UvA) organised the Conference ‘Towards eXplainable Artificial Intelligence (XAI) in Taxation: The Future of Good Tax Governanceon’.

Professor Christa Tobler and Jacques Beglinger have written two new publications.

In August 2018, the fourth edition of the teaching and learning materials

European labour law has an unmistakable influence on national law. This applies even more to the case-law of the Court of Justice of the European Union (CJEU), as it has implications for the application of European law in the Member States and with it the interpretation of national law. Collected Cases…

Students attending Richard Albert’s seminar on constitutional change asked Reijer critical questions about an article he recently wrote with Maarten Stremler.

The individual in the EU: The application of insights from social psychology to improve the legitimacy and conflict-solving capability of the EU

Published by Brill Nijhoff and written by leading experts including national judges, academics and practitioners East African Community Law is the first comparative as well as open access textbook on EAC law. The book provides a key resource for the research, teaching, and practice of EAC law. It also…

What are the institutional dynamics of the adoption of internal market legislation?

This book is the first to incorporate current academic literature and case law on European, transnational, and international media law into a comprehensive overview intended primarily for students.

On Thursday 9 november, Reijer Passchier defended his dissertation 'Informal constitutional change'. His supervisor is Professor Wim Voermans.

On 23 April, Andreas Häuselmann defended the thesis 'EU privacy and data protection law applied to AI: unveiling the legal problems for individuals'. The doctoral research was supervised by Gerrit-Jan Zwenne and Bart Custers.

On 18 september 2018, Jonathan Price defended his doctoral thesis 'The Egalitarian Constitution'. The doctoral research was supervised by Prof. dr. A.A.M. Kinneging.

The Law of the European Union is a complete reference work on all aspects of the law of the European Union, including the institutional framework, the Internal Market, Economic and Monetary Union and external policy and action.

On 27 September 2017 a new book by Prof. Luuk van Middelaar appeared, entitled The new politics of Europe. The book is at the same time a front line account of Europe’s recent crisis years – from monetary turmoil to tensions around Ukraine, from refugee crisis to Brexit – and an analysis of the Union’s…

On 26 June 2019, Lisa Louwerse defended her thesis 'The EU’s Conceptualisation of the Rule of Law in its External Relations: Case Studies on Development Cooperation and Enlargement'. The doctoral research was supervised by Prof. C.A.P. Hillion.

Jaroslaw Kantorowicz, assistant professor at the Institute of Security and Global Affairs, is a co-author of this publication that explores the nature of the ideological bias in a constitutionally relevant decision.

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In February 2014, the Swiss voting population accepted a constitutional initiative that aims at limiting migration through quota and, in the field of employment, national preference.

EU Cyber Direct – EU Cyber Diplomacy Initiative supports the European Union’s cyber diplomacy and international digital engagements in order to strengthen rules-based order in cyberspace and build cyber resilient societies. To that aim, we conduct research, support capacity building in partner countries,…

On 19 September 2019, Lynette Janssen defended her thesis 'EU Bank Resolution Framework: A comparative study on the relation with national private law'. The doctoral research was supervised by Prof.mr. W.A.K. Rank and prof. M. Haentjens.

Olga Ceran was a speaker at the European Constitutional Law Review (EuConst) Symposium for Young Scholars that took place in Maastricht on 18 June 2024.

The EU JudgeCo Platform provides valuable sources on cross-border insolvency court-to-court cooperation and communication in a EU context.

The EUTAXGOV Chair will address the EU Standard of Tax Good Governance. This Standard has been introduced in 2008 by the ECOFIN Council with a view to tackle tax fraud and evasion by companies and individuals and as a pre-condition for third (non-EU) countries that receive EU development aid, and concluded…

Femke Binnendijk and Olaf van Loon have been appointed as lecturers at the Department of Constitutional and Administrative Law at Leiden Law School.

On Thursday 13 October 2022, the Department of Constitutional and Administrative Law bid farewell to Elly van der Tang-van Loenen, for years the department's mentor for master’s students. Having enjoyed this position for many years, Elly is now retiring.

This project aims to design Principles and Guidelines to improve coordination between courts in Europe for insolvency and related proceedings.

The prohibition of anti-competitive unilateral conduct by firms with market power is not absolute, but allows for derogation.

On 5 June, Maarten Aalbers defended the thesis 'The balancing of general interests in EU State Aid Law: blurred lines between the prohibition and the compatibility of aid'. The doctoral research was supervised by Pieter van Cleynenbreugel and Stefaan van den Bogaert.