How can governments reach their policy goals in the most effective way? Which manner of financing is the most suitable? Does the spirit of our times call for new forms of subsidy? What does the future of subsidy law look like?

Willemien den Ouden, Professor of Constitutional and Administrative Law and Academic Director of the Institute of Public Law has been appointed State Councillor at the Administrative Jurisdiction Division of the Council of State in the Netherlands.

Joe Finnerty has co-edited the 2026 Symposium in the Human Rights Law Review entitled Legitimate Aims and Ulterior Purposes in International Human Rights Law: Comparative Perspectives.

This book analyses the expulsion of delinquent foreigners and their exclusion from the territory through a comparative lens.

The center studies the many ways in which issues of law and justice are dealt with in art and literature with a focus on liminal issues and cases. These are issues and cases where law comes to the limits of what it is capable of dealing with and art and literature explore the implications of what is…

Kamerlingh Onnes Building, Steenschuur 25, 2311 ES, Leiden

In this article, Lianne Visser contributed to the understanding of why collaborative governance is a challenging response to wicked problems.

The Netherlands Council of State ruled at the end of March that WhatsApp and text messages on the work and private cell phones of civil servants are considered to be official records. This decision puts the government in a difficult position. How are you going to store millions of texts and WhatsApp…

Szmulewicz, a PhD candidate at the Department of Constitutional and Administrative Law at Leiden University, gave two online presentations on ‘The unitary and decentralized state’ and ‘The need to strengthen the autonomy of the territories in the new Constitution in order to reduce regional inequalities’…

Financial Law is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University.

Civil Law is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University.

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…

Arbeidsrecht (labour law) is a specialisation within the master’s programme Rechtsgeleerdheid (Law) at Leiden Law School, Leiden University's renowned faculty of law.

Almost a century passed since the much-celebrated judgement in the case concerning the Factory of Chorzów was delivered. This 1928 judgement of the Permanent Court of International Justice affirmed the essential principle of ‘reparation’ in international law, claiming that ‘restitution’ is the preferred…

The Private International Law Department provides academic education and performs research in the field of private international law.

The IP Law (Intellectual Property Law) department provides education and conducts research in the field of intellectual property law.

'Law and empirical research' is one of Leiden Law School's four research focus areas.

Philosophy of law is concerned with the the foundations of law.

De Leiden Law Academy, voorheen JPAO, verzorgt geaccrediteerde juridische post academische opleidingen en nascholingen in samenwerking met de rechtenfaculteit Leiden en staat garant voor een leven lang ontwikkelen op juridisch gebied. Wij helpen u graag bij het actueel houden van uw kennis en vaardi…

Welcome to the Business & Law Research Network!

This Leiden Law School page provides various information on Diversity & Inclusion at the faculty. It explains why D&I are key objectives, lists our current D&I projects, and outlines the faculty’s plans for improvements in these areas.

This article offers an inaugural assessment of how silences implicate international law-making in cyberspace through descriptive and normative lenses.

Company Law is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University.

MSc Law and Society brings together students from law and social sciences to examine the dynamic relationship between legal norms and social reality. Its global orientation, interdisciplinary approach, and focus on social justice make this master’s programme unique in its field.

The Institute of Private Law was closely involved in the development of Nieuw Burgerlijk Wetboek (the Civil Code of the Netherlands, which came about between 1948 and 1992). It has continued to fulfil this socially engaged role over the years. It also made a significant contribution to the development…

Are you interested in developments in society? In a conflict, do you prefer searching for a compromise rather than giving a judgement? If so, Notarieel Recht is the right study for you.

The section Civil Procedure Law offers education in the bachelor and master fase of the Law program.

Law is of major importance for socio-economic development. Ideally, law organises human interaction in a way that promotes justice and legal certainty and protects vulnerable groups from exploitation and arbitrariness.

European Law is a one-year Master’s specialisation at the internationally renowned Leiden Law School at Leiden University. The programme distinguishes itself by its broad intra-disciplinary approach, covering institutional, constitutional as well as internal market and competition law of the EU in addition…

'Technology, law and justice' is one of Leiden Law School's four research focus areas.

This research concerns a network of labour law specialists in the EU. The growing internationalization of the economic market and the employment market has a major impact on legislation and research of labour law. Particularly within the European Union labour law is subject to constant development…

Sustainability and law is one of Leiden Law School's four research focus areas.

The annual meeting of the European Group of Public Law (EGPL) took place on 13 and 14 September 2024 in Legrena, Greece.

Anne Meuwese, hoogleraar Public Law & Governance of Artificial Intelligence, heeft in een uitzending van een EenVandaag NPO Radio1 een vraag van een luisteraar beantwoord. De vraag, ingegeven door de wens een apart ‘ministerie van Digitale Zaken’ te creëren, luidde of tijdens een regeerperiode een nieuw…

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?

The Institute of Criminal Law and Criminology comprises two departments. One focuses on research and teaching in the field of criminal law and procedure and the other on criminology.

On 10 April 2025, Melanie Fink presented her current research on the interplay between EU constitutional law and the regulation of digital technologies.

Leiden Law School has a methods portal that offers an overview of the various phases of empirical legal research.

How do commissions of inquiry operating in conflict situations utilize international law, and how can inquiry findings be utilized by other bodies belonging to the international legal community?

On the Leiden Law Blog, our researchers comment on the latest news and showcase the research being conducted at our faculty.

To what extent can Parliament limit freedom with the so-called 2G policy? Associate Professor of Constitutional and Administrative Law Ingrid Leijten of Leiden University discussed this topic on NOS Nieuws en Co.

Consumer complaints, the war against drugs, family issues, matters of state: Rechtsgeleerdheid (Law) is socially relevant and topical.

The Institute of Private Law is part of the Leiden Law School.

The Common Market Law Review is designed to function as a medium for the understanding and analysis of European Union Law, and for the dissemination of legal thinking on all matters of the European Union Law.

The Law School Green Team is the very first Green Team created by LUGO. We work on making our faculty as sustainable as possible. We’re dedicated to promoting a greener and more eco-friendly faculty, so we can all contribute to a better environment! In addition to our green initiatives, we also organize…

Simona Demková of the Europa Institute recently participated in the inaugural Czech-Slovak symposium on the challenges of artificial intelligence for administrative law, titled 'Co roboty rozhodovat nenecháme?' ('What Shall We Not Let Robots Decide?'), held on 7 March 2025, at Charles University's Faculty…

Are you thinking about studying European Law? Learn more and watch the videos.

Sinds 1973 vindt in december jaarlijks een congres plaats voor staatsrechtjuristen: de zogeheten Staatsconferentie. De conferentie vindt bij toerbeurt plaats op een locatie die is gekozen door één van de Nederlandse rechtenfaculteiten.