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

On Wednesday 25 June 2025 Dechun Zhang successfully defended a doctoral thesis and graduated.

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…

We are delighted to announce that the Digital Humanities and Cultural Analytics minor will be offered in the 2026 academic year. Please check back soon for updated 2026-2027 syllabus - to be published soon. DH &AI Minor 2025-6 example courses remain published here to give an idea of subject content…

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…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

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

Pushing the boundaries of quantum theories – that’s exactly what the physicists at Leiden University excel at. Researchers in Leiden are launching eight new quantum research projects as part of the Quantum Limits consortium.

We co-organise our society through law and public institutions. As society evolves, these institutions continually face new dilemmas. Legislators must regulate AI while also fostering competitiveness. Judges are tasked with protecting a healthy environment while respecting democratic decisions. States…

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.

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

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.

A hot topic in educational sciences is whether and how reading medium (paper vs. screen) affects reading comprehension. Especially in the media – but also in schools – their appears to be a preference for texts presented on paper: Paper texts are thought to induce a more intensive reading strategy,…

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…

The Hague Program for Cyber Norms, a research program at the Institute of Security and Global Affairs, published its first policy brief, in which Dennis Broeders, Sergei Boeke and Ilina Georgieva explore the role of intelligence agencies in cyberspace and the (im)possibilities of oversight and regulation…

The majority of professors of tax law in the Netherlands have links to accounting and law firms, writes Dutch newspaper De Volkskrant.

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…

Loopholes in international tax legislation contribute to the misuse of tax rules by multinationals. Leiden University legal experts investigate how the complex national and international tax rules can be made more consistent in order to create a better tax system.

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

In this article, Jasmijn Boeken, explores in which ways the defining characteristics of the different zones can be found in the digital sphere.

Lecture

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

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…

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.

In this article, the authors explore how international criminal law is moving into a ‘post-critical’ phase and examine its potential for emancipatory reform.

How does the development of digital technologies impact society, and law/regulation within that society?

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…

Leiden is the place for Law

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

The Asser Institute organised an interdisciplinary conference on ‘Law and ethics of artificial intelligence in the public sector: From principles to practice and policy’ that took place from 10 to 11 March 2022. Melanie Fink presented a paper co-authored with Michèle Finck.

On Friday 2 December 2016, an international, multidisciplinary Research Conference on “Private law and market regulation – interaction, interference or inconsistency?” will be held in Leiden, hosted by the Coherent Private Law research group of Leiden Law School. The conference will be focused on two…

On important occasions in a person’s life and where business is concerned, notarial practice plays a crucial role. The master’s programme 'Notarieel recht' is a versatile and challenging field of study.

The master’s programme 'Jeugdrecht' considers topics like child abuse, child refugees, bullying via social media, adoption and divorce and aims to make a difference in the lives of the youngest members of our society.

Do you like solving complex legal puzzles? Do you like analysing problems? If so, the bachelor’s programme Fiscaal Recht is right for you.

The master’s programme 'Fiscaal Recht' provides you with in-depth theoretical and practical knowledge on all the ins and outs of tax law.

Legal education initiative of the Leiden University, the University of Groningen and Universitas Indonesia.

The rise of the digital age affects public governance in many ways. Digitalisation and data impact every aspect of public governance and policy. Within Leiden University’s Public Administration institute, based in The Hague -the administrative capital of the Netherlands- our centre seeks to understand…

Blended and hybrid teaching are presented as crucial in promoting teaching innovation, as well as more flexible study approaches allowing students to develop their own tailor-made study programmes. While the strategy document focuses on the positive aspects of digital teaching tools, no systematic study…

The law and Artificial Intelligence (AI) applications need to be better aligned to ensure our personal data and privacy are protected. PhD candidate Andreas Häuselmann can see opportunities with AI, but dangers if this does not happen.

Carlotta Rigotti co-authors a new publication on EU law and image-based sexual abuse in the German Law Journal.

Promotor: J.N. Kok, Co-promotor: W.A. Kosters

How does the social infrastructure affect administrative burdens associated with digital government services? The paper 'Administrative burden in digital public service delivery: The social infrastructure of library programs for e-inclusion' published in the Review of Policy Research by Sarah Giest…

Damien Van Puyvelde and Paul Oling explore how government intelligence agencies can effectively collaborate with the private technology sector to meet their evolving technological needs, focusing particularly on emerging technologies such as artificial intelligence (AI) and quantum computing.

The international legal order is in a process of transformation. But how transforms globalization the international legal order? This research programme provides a clearer framework to analyze this..