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.

This edited publication aims at reflecting on the future of discussions on the applicability of international law to States’ use of ICTs in the context of highly politicised discussions at the multilateral level and offering practical suggestions for the European Union to pursue its objectives in this…

This book offers a comprehensive analysis of the international law applicable to cyber operations, including a systematic examination of attribution, lawfulness and remedies. It demonstrates the importance of countermeasures as a form of remedies and also shows the limits of international law, highlighting…

LUGO is launching Green Teams throughout the University, starting with the Law Faculty.

One of the recurring points of discussion within the Criminal Justice research programme is the question of what behaviour should or should not fall within the scope of criminal law. This research theme is examined from a legal-dogmatic and social-scientific perspective.

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

In this course, you will gain a deep insight into the rules that govern armed conflict, and aim to mitigate human suffering on the battlefield. You will explore the why and how of International Humanitarian Law, followed by the different types of conflict.

Are UN sanctions regimes in need of further formalization in terms of substantive design, procedural architecture and with a view to regulating and governing the interplay with other regimes?

Growing public backlash against international organizations (IOs) and attacks of national political elites on the rule of law increasingly challenge governance by IOs.

On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.

Mental health issues in the Dutch court: The criminal court as a border guard between the regular Mental Health System and the Criminal Justice system?

Although sexual abstinence before marriage is no longer the central message in The Netherlands the affective relationship as a criterion for professionals within criminal justice can be seen as a more contemporary version of marriage.

On the 5th of May 2016, the second annual conference of the Leiden Center for East African Law (LEAC) took place at the East African Community headquarters in Arusha, Tanzania. The Conference was organized on the occasion of Europe Day with the generous support of the EAC, the EU delegation to EAC and…

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

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 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…

Which laws govern the commercial use of outer space? Are States responsible for mitigating space debris? Who is liable for accidents that happen onboard an the aircraft? In our Advanced Master Air and Space Law you will learn how to deal with questions like these from both an international and a European…

Which laws govern the commercial use of outer space? Are States responsible for mitigating space debris? Who is liable for accidents that happen onboard an the aircraft? In our Advanced Master Air and Space Law you will learn how to deal with questions like these from both an international and a European…

Our Master Law in European and International Human Rights Law (LL.M.) looks at the various human rights protection mechanisms from a comparative perspective

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

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..

Just published: United in incoherence – Private law concepts under pressure from European financial law (in Dutch), in: Tijdschift voor privaatrecht 2017-4

On 12 mei 2020, Darryl Robinson defended 'Exploring Justice in Extreme Cases: Criminal Law Theory and International Criminal Law'. The doctoral research was supervised by Prof. C. Stahn.

The central question in this study is: ‘What can the Netherlands learn from the way in which these countries have organized law enforcement and the rule of law in their overseas territories?’

In this policy brief, Dennis Broeders, Els De Busser and Patryk Pawlak discuss attribution of in cyberspace from three different perspectives: criminal law, international law and policy. Published together with EU Cyber Direct.

To what extent does the Law Ombudsperson for Children achieve its goals as intended by the legislator when introducing the law?

Latif Fauzi defended his thesis on 18 May 2021.

Leiden University’s Master of International Civil and Commercial Law (L.L.M.) examines the interrelated layers of hard law, soft law, and relevant case law.

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.…

The Research Handbook on Labour, Business and Human Rights Law edited by prof. Janice Bellace of the University of Pennsylvania and ass. prof. Beryl ter Haar of Leiden University. The book is publisehd in Edward Elgars series on Human Rights.

On Wednesday 13 December 2017 René Hage defended his doctoral thesis entitled ‘Handhaving van privaatrecht door toezichthouders’ (Enforcement of private law by regulatory authorities).

Our Master Public International Law (L.L.M.) you will gain understanding of the legislation that governs international relations in a complex global society

On 30 June 2016, Eesa Fredericks is expected to defend his Ph.D.-thesis ‘Contractual Capacity in Private International Law’ in Leiden. Supervisors are prof. Sierd J. Schaafsma (Leiden) and prof. Jan Neels (Johannesburg).

Law and legal institutions play an important role in the organisation of society. They can be used to address and regulate social problems ranging from migration and terrorism to corruption, and from pollution and climate change to social and gender equality. But laws and institutions, and the way in…

Law and legal institutions play an important role in the organisation of society. They can be used to address and regulate social problems ranging from migration and terrorism to corruption, and from pollution and climate change to social and gender equality. But laws and institutions, and the way in…

Law and Digital Technologies (L.L.M.) examines the legislation and governance regarding internet, computers, persuasive technologies and ambient intelligence.

The International Institute of Air and Space Law is one of the leading international academic research and teaching institutes in the world, specialising in legal and policy issues regarding aviation and space activities in the broadest sense of the word.

This project aims to answer legally relevant questions in the field of consumer law by means of empirical research.

The Institute of Tax Law and Economics at Leiden Law School has three departments: the Department of Tax Law, the Department of Economics and the Department of Business Studies. The Institute brings together research and teaching at the point at which, on the one hand, law and, on the other, fiscal…

Recent insolvency cases highlight the growing importance of cross-border insolvency matters in international transactions. To this end, many instruments have been introduced and implemented in recent years across the world. At this page we present a selection of relevant instruments in the field of…

This master’s programme introduces the student to philosophical issues arising at the intersection of law, politics, and policy. This master’s programme is meant for students who wish to combine a master’s in Law, Political Science, Public Administration, or an adjacent discipline with a master’s in…

With regard to governance, policies and law, many Muslims and Muslim countries recognise the possibility that Islam has something important to say about the way society is to be ordered, governed, and regulated.

Everyone most obey the law. If you don’t, you will face the police and the courts. The application of national, European and international criminal law would seem to be a matter of following the letter of the law. But the reality is more nuanced. Criminal law scholars and criminologists from very different…

Just published: European Banking and Financial Law Statutes Published by Routledge

The Summer School on International Humanitarian Law is designed by the Grotius Centre Kalshoven-Gieskes Forum on International Humanitarian Law. The announcement for the next edition is scheduled to take place in January 2025.

Leiden Law Practices (LLP)

How to explain the apparent high success rates of the EU infringement procedures, which are the major tools for enforcing EU law, against the member states?

Press freedom in Indonesia is still under pressure, despite the demise of Soeharto’s regime in 1998