This research project from Leiden University looks at the opportunities and threats that flow from the existence of institutional and normative diversity in the area of fundamental rights for the effective protection of those rights in a pluralist world.

The more opportunities a child has to learn and develop, the stronger his or her future position in society. Leiden University investigates how the brain picks up information, and how learning processes can be influenced positively.

This one-year, English-taught Master's programme offers insights on general developments as well as the specific challenges in the field of the governance of crisis and security, with in-depth knowledge of sub-fields of crisis and security management.

This one-year, English-taught Master's programme offers insights on general developments as well as the specific challenges in the field of the governance of crisis and security, with in-depth knowledge of sub-fields of crisis and security management.

This one-year, English-taught Master's programme offers insights on general developments as well as the specific challenges in the field of the governance of crisis and security, with in-depth knowledge of sub-fields of crisis and security management.

Moritz Jesse has been awarded a Jean Monnet Chair by the European Commission. In his MIND-EU Project he will focus on a coherent way to teach Migration, Integration, and Non-Discrimination at Leiden Law School at bachelor and master level.

This one-year, English-taught Master's programme offers insights on general developments as well as the specific challenges in the field of the governance of crisis and security, with in-depth knowledge of sub-fields of crisis and security management.

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?’

The Department of Constitutional and Administrative Law is active in many areas.

Indonesian Law and Reality in the Mahakam Delta

On 15 February 2022, Morshed Mannan defended the thesis 'The Emergence of Democratic Firms in the Platform Economy: Drivers, Obstacles, and the Path Ahead'. The doctoral research was supervised by Prof. I.S. Wuisman and Prof. J.A.A. Adriaanse.

The Historic Port Town of Sandy Point and its Anchorage

Two documents mark the birth of Leiden University.

Healthcare robots and AI is a project that investigates the legal and regulatory aspects of healthcare robot and Artificial Intelligence (AI) technologies

What does it mean to protect against disaster in the context of climate change and other cascading environmental crises?

Since the late 1990s, Leiden University has been located in two cities: Leiden and The Hague. Leiden Law School is also involved in teaching and research at Campus The Hague.

Stella Morgana defended her thesis on 31 March 2021

On 5 September 2017, Alessandro Tonutti defended his PhD dissertation

You’ve been accepted! Leiden University looks forward to welcoming you as a new student. Your next step is to prepare for your studies. Below you can find some tips to help you get a head start as you embark on your studies at Leiden University.

When you apply for admission, you’ll be asked to submit several documents. The documents that are required depend on your educational background and chosen study programme.

This article on private active cyber defense by Dennis Broeders is part of a special issue of the Journal of Cybersecurity, based on a selection of contributions taken from the 2019 Conference on Cyber Norms organized by The Hague Program for Cyber Norms.

How can international investment law and arbitration take account of the public interest in, and more broadly, the public dimension of, the relations between foreign investors and host States ?

On 18 June 2019, Peter Kempees defended his thesis 'Hard power and the European Convention on Human Rights'. The doctoral research was supervised by Prof. R.A. Lawson and Prof. H. Duffy.

The Cyber Security Governance research group contributes significantly to the educational programmes at Leiden University. By integrating cutting-edge research into the classroom, we ensure that students engage with the latest developments in the field of cyber security, governance, and ethics.

This publication examines the issues regarding the cross-border resolution of financial institutions, focusing on the power allocation between the home and host resolution authorities, i.e. the jurisdiction rule.

Miriam Cohen defended her PhD dissertation entitled “Reparations for International Crimes and the development of a Civil Dimension of International Criminal Justice” on 28 June 2017. She wrote her thesis under the supervision of Professor L.J. van den Herik and Professor C. Stahn.

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…

The complexity of an intelligence problem determines to a great extent the certainty that can be provided by intelligence and security services.

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.

On 27 June 2019, Vid Prislan defended his thesis 'Domestic Courts in Investor-State Arbitration: Partners, Suspects, Competitors'. The doctoral research was supervised by Prof. dr. N.J. Schrijver.

On 24 November 2015, Prof. Carsten Stahn participated as external expert in a special plenary session of the Assembly of States Parties on the efficiency and effectiveness of Court proceedings, chaired by the co-chairs of the Study Group on Governance of the Assembly.

Underneath you find more information on how our faculty works.

Several times per year, the Europa Institute organises a ‘Meet the Author’ event. In the context of this event series external academics come to Leiden to discuss one of their recent publications. The event starts with a conversation between a member of the Europa Institute and the author, after which…

This paper explores whether multilateral surveillance and policy coordination under the ES was based on a path-changing or a path-dependent mechanism

What is the impact of Indonesia’s democratization process on everyday state-citizen relations?

On the 6th of April, Toni Pedrós Caballero successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Toni on this achievement!

Our scientists working with laboratory animals undergo training on animal experiments. In this training, researchers learn how to handle laboratory animals responsibly. Read more about the requirements we set for researchers working with laboratory animals.

An assessment of Libyan legislation

Circularity is an essential aspect of the industry transformation towards resource-efficiency, climate neutrality and long-term competitiveness. It can produce substantial material savings along value chains and production processes, generate added value and unlock economic opportunities.

On 21 January 2021, Fachrizal Afandi defended his thesis 'Maintaining Order: Public Prosecutors in Post-Authoritarian Countries, the case of Indonesia'. The doctoral research was supervised by Prof. A.W. Bedner and Prof. J.H. Crijns.

On 18 April, Alexandre Tavadian defended the thesis 'The International Civil Service: Redefining Its Independence'. The doctoral research was supervised by Niels Blokker and Brian McGarry.

The research project addresses the question how complaints in the voluntary youth care system are dealt with on the municipal level and what role (municipal) Children’s Ombudspersons play in this context, through qualitative research methods.

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.

The Hazelhoff Centre for Financial Law provides academic teaching and performs research in the field of financial law.

Stam defended his dissertation ‘Freedom of speech and the suppression of discrimination in the Netherlands: a constitutional-developmental approach’ on 12 November 2025. The doctoral research was supervised by Afshan Ellian and Bastiaan Rijpkema

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.

The Criminal Justice Master’s programme offered by the institute of Criminal Law and Criminology at Leiden University will provide you with the skills necessary for a successful career in the private or public sector.

On 14 December, Jouke Tegelaar defended the thesis 'Single supervision, single judicial protection? Towards effective judicial protection in Single Supervisory Mechanism composite procedures'. The doctoral research was supervised by Matthias Haentjens and Willemien den Ouden.