In this article, Jaroslaw Kantorowicz and his coauthors analyse how recent political changes reshaped Poland’s Constitutional Tribunal and why this transformation provides important insights into contemporary democratic backsliding in Europe.

The Institute of Psychology is part of the Faculty of Social and Behavioural Sciences.

, Sandifortdreef 21, 2333 ZB, Leiden

Intensive public debates have erupted about integration of immigrants in Europe. The influx of refugees from the middle east during the summer and autumn of 2015, the increasing visibility of immigrants throughout European societies, but also the widely publicized occurrences on New Year’s eve in Cologne…

On 25 November 2020, Sara Arendse defended her thesis 'De uiterlijke verschijningsvorm in het strafrecht'. The doctoral research was supervised by prof. C.P.M. Cleiren and prof. J.M. ten Voorde.

The International Criminal Court’s response to contestation by African states parties

Contact details and staff overview of the Leiden University Graduate School of Social and Behavioural Sciences.

The oral arguments at the Telders Moot Court are judged by a panel of three judges.

Repairing organs, tissues and cells to fight chronic diseases.

Mattias Brand defended his thesis on 10 April 2019

Duizenden metaalvondsten die door detectorzoeker wijlen Herman Zomerdijk zijn gedaan in de regio Kennemerland schetsen een uniek beeld van Noord-Holland door de eeuwen heen. Hij zocht en verzamelde decennialang historische metalen objecten in Noord-Holland en bouwde zo een unieke metaalcollectie op.

Can we really speak about Jewish musicological, musical thought and what is the essence of this thought?

The symposium is organised by the Department of Child Law at Leiden Law School, on the occasion of the 30th anniversary of the UN Convention on the Rights of the Child.

This research deals with the royal houses of the Vijayanagara Empire and four of its successor states: Ikkeri, Tanjavur (under both the Nayaka and Bhonsle rulers), Madurai, and Ramnad. This study is thus concerned with dynastic politics and imperial legacies in south India between the 14th and 18th…

The Common Market Law Review has had its editorial office in the Leiden Europa Institute ever since it was founded in 1963.

How do interest groups in the Netherlands use strategic litigation to bring about political, social or legal change, and how does this strategy compare to other, more classical, ways to influence policy?

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,…

The curriculum in the first semester provides an overall introduction to public international law and international criminal law. The second semester is more track-specific and focused on interaction.

The International Criminal Law programme prepares you for a successful career within a multidimensional field, in Europe or around the world.

Ruling Overseas: Connected Practices of Governance of Law

The LL.M. (Governance of Migration and Diversity specialization) provides in-depth expertise on migration, asylum, diversity, and non-discrimination law with an international and European focus. Courses span multiple academic disciplines, including law, history, sociology, political science, and development…

The Department of Civil Law is responsible for education and research in the field of civil law. We teach the master’s degree programme Civiel Recht (Civil Law LL.M.), attracting many students each year from Leiden and elsewhere.

82 years ago Queen Wilhelmina fled to England. Henk te Velde tells about her on the Australian radio show 'Nightlife'.

The programme group Clinical Neurodevelopment Sciences is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

Procedural administrative law in a constitutional comparative law perspective

On 25 January 2018 Yannick van den Brink defended his doctoral thesis titled ‘Voorlopige hechtenis in het Nederlands jeugdstrafrecht’ (‘Pre-trial detention in the Dutch juvenile justice system’). The doctoral research is supervised by Professor Ton Liefaard and Professor Mariëlle Bruning.

The Institute of Education and Child Studies is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

The programme group Educational Sciences is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

The programme group Research Methods and Statistics is part of the Institute of Education and Child Studies. This group is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

The programme group Parenting, Child Care and Development is located in the Faculty of Social and Behavioural Sciences at Leiden University near Central Station.

The program group Learning and Behavior Problems in Education is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

Research within COI@Leiden is clustered around two themes: sustainable justice and the courtroom as a social arena. Find out more about each of these projects by clicking on the links below.

On 10 October 2018, Richard Resch defended his doctoral thesis 'The Interpretation of Plurilingual Tax Treaties'. The doctoral research was supervised by Prof. mr. C. van Raad.

This is the team of LAPP:

The program group Forensic Family and Youth Care Studies is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

Our research is done at two different locations.

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.

On Wednesday, 14 May 2025, Catherine O'Regan will deliver the annual Van Vollenhoven Lecture

Due to its economic prosperity, its policy of (relative) religious tolerance, and its large numbers of migrants, the Dutch Republic has long had a reputation of being the prime example of ‘tolerance’, especially during the seventeenth century. Although the great variety of newcomers in the Dutch Republic…

More information about the European and International Business Law programme of Leiden University can be found on this webpage.

Dr Letizia Lo Giacco is the recipient of the 2024 Rosalyn Higgins Prize for her article titled 'When a Dispute Exists: The Emerging Evidentiary Practice of the ICJ in Common Interests Proceedings'.

Below are some of the scholarly works published within the context of the Institutions for Conflict Resolution programme.

The International Institute of Air and Space Law is very proud to announce that Judge Peter Tomka has accepted the position of chairman of its International Advisory Board. During the Board meeting on 15 November 2017, Judge Tomka officially succeeded Professor Laurens Jan Brinkhorst as chairman of…

In our European and International Business Law Advanced Master programme, you learn to decipher the hierarchy of European & international business law

Lecture, Studium Generale

Onlangs verscheen het boek ‘Afgrond zonder vangnet’ van Yra van Dijk, hoogleraar Moderne Nederlandse Literatuur. In haar boek analyseert ze verschillende thema's in het werk van Arnon Grunberg.

In the Netherlands judges are not the only ones to impose sentences. The Public Prosecution Service and the authorities can also pass sentences. Experts from Leiden research how these sentencing processes work and how they can be improved in order to protect the legal status of the public.

This project aims to design Principles and Guidelines to improve coordination between courts in Europe for insolvency and related proceedings.

Interest groups play an important role in democratic society.

Regulating Relations: Controlling Sex and Marriage