Our faculty has a rich history. Last year, in honour of Leiden Law School’s 450th anniversary, a timeline describing our history in 12 key moments was officially unveiled in the Faculty Room at the Academy Building

It was already clear that the Dutch tax office had been working with black lists for years, containing the names of people who, according to the authorities, had a high risk of committing fraud. But reports by research agency PwC make it clear how systematically the Dutch tax office discriminated when…

Demissionair minister Weel rest nog maar één maand de tijd om een nieuw Asielnoodmaatregelenwet te leveren, waarin illegaal verblijf strafbaar wordt gesteld. Geerten Boogaard, hoogleraar staats- en bestuursrecht, schat in dat dit niet lukt, zegt hij in Trouw

This PhD dissertation examines international responsibility for the crime of aggression from a public international law perspective. Under customary international law, as well as the amendments to the Rome Statute of the International Criminal Court adopted in the Review Conference in Kampala in 2010,…

Cora van Nieuwenhuizen (VVD) has resigned as Minister of Infrastructure and Water Management with immediate effect. She has decided to take up a position outside politics and will become chair of the lobby organisation for the energy sector, Energie Nederland.

Between 5 and 8 September, PhD Candidate Esteban Szmulewicz attended the 45th annual Conference of the European Group for Public Administration (EGPA), which was organised in close cooperation with The Faculty of Law of the University of Zagreb and other key partners.

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

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.

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.

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

Kamerlingh Onnes Building, Steenschuur 25, 2311 ES, Leiden

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…

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’…

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…

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

Study information

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

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

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

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…

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.

Philosophy of law is concerned with the the foundations 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…

Welcome to the Business & Law Research Network!

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

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…

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.

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

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…

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

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

The Institute of Public Law comprises all areas of public law, with the exception of criminal law, and including labour law.

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.

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.

This study examines how European state administrations responded to transboundary crises over the past 30 years and the extent of their successful adaptation.

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?

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?

The sustainable business law research group is dedicated to researching the complex relationship between business activities and sustainability. It strives to develop legal solutions that contribute to a more ethical, just, ecologically responsible and socially inclusive society. Our aim is to develop…

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…