Going to school during the summer holidays? Some of our students accepted the challenge. And they didn’t do that just around the corner. During their holidays, students bio pharmaceutical sciences and computer science visited special summer schools in China. ‘China is a global player that we should…

Tahir Abbas was named full professor of radicalization studies by the Executive Board. This chair, according to Abbas, is an excellent opportunity for ISGA to broaden its current focus on terrorism and political violence. Abbas was interviewed about his ambitions, writing as a form of relaxation, and…

How to minimalize the chance of recidivism for extremist prisoners.

Physical chemist Rik Mom developed a revolutionary way to investigate catalysts in action in detail. For this work he received the distinction cum laude during his PhD defence on 29 June.

A professor from Leiden University has subjected various colleagues to intimidating and unacceptable behaviour for a longer period. These are the findings of an investigation carried out by the University’s independent Complaints Committee for Unacceptable Behaviour at the request of the Executive Board…

The brain structure of young people with conduct disorder differs significantly from that of their typically developing peers. This is the conclusion of an international study that analysed more than two thousand MRI scans, recently published in The Lancet Psychiatry. Dr Moji Aghajani, one of the principal…

From 2012 onwards the primary scholarly and media focus in regard to foreign fighters has been on the large number of Westerners joining jihadist groups in Syria and Iraq. Yet, much less attention has been paid to another conflict in the ring around Europe that attracted foreign fighters: the Russo-Ukrainian…

Nobody is better qualified to tell you what it is like to work at Leiden University than the employees themselves. Watch the videos and meet your future colleagues. They will be happy to share their experiences with you.

Interdisciplinarity is more than a buzzword in academia. It’s essential for tackling today’s biggest challenges. But what does it look like in practice? How can PhDs learn the skills needed to work across disciplines, and how can supervisors master the art of guiding them?

This paper contributes on an increasing body of work on radicalisation. It specifically focuses on what distinguishes individuals whose behavioural radicalisation includes involvement in terrorist violence from those whose behavioural radicalisation does not.

This article presents the findings of an explanatory study into the perceptions of Dutch Muslims in The Hague concerning pre-emptive counter-extremism and de-radicalisation policies.

This article researches the public perception of terrorist attacks by measuring the importance the public assigns to attributes of terrorist attacks.

This article presents an in-depth evaluation of a specialized reintegration initiative within the Dutch Probation Service focused on individuals convicted or suspected of involvement in terrorism.

In this article, Tokdemir & Klein examine the strategic actions of governments against domestic terrorist groups and domestic terrorist groups’ reactions to such actions.

This book contextualizes the use of terror as part of wider movements of political contention, demonstrating that terroristic innovation occurs as part of wider historical processes rather than in a vacuum.

The study by Tahir Abbas and Liselotte Welten reveals a structural and nuanced understanding of how the question of Salafism in the Netherlands has become an increasingly discussed phenomenon and the types of threats that ought to give genuine concern to security, intelligence and policing services.

Prof.dr. Vincent van Heuven has been appointed as a member of the Royal Academie of Dutch Sciences (KNAW).

On 1 and 2 December 2022, Vincent Delhomme and Carina van Os participated (Europe Institute) in the workshop ‘The European Health Union - Setup, challenges and global outlook’, held at the Max Planck Institute for Comparative Public Law and International Law in Heidelberg. Vincent had the opportunity…

On 26 October 2023, Vincent Delhomme spoke at the inaugural conference of the newly founded ICON-S Benelux Chapter, hosted by Maastricht University. The overarching theme of the conference was 'Crises, Challenges, and the Future of Public Law'. Vincent participated in the panel on ‘The challenges of…

On 19 October 2023, Vincent Delhomme spoke at the conference on ‘European Judicial Narratives’, hosted by the University of Louvain Saint-Louis in Brussels. Vincent participated in the panel devoted to the reception of these judicial narratives in the European legal epistemic community.

Could policies aimed at preventing radicalisation undermine the very trust and social cohesion they aim to strengthen?

In this blog post, Linda Slapakova discusses the various roles that AI plays in counter-disinformation efforts, the prevailing shortfalls of AI-based counter-disinformation tools and the technical, governance and regulatory barriers to their uptake, and how these could be addressed to foster the uptake…

It is always a pleasure when a young academic can reach out to the broader public and discuss his/her research's societal relevance and impact. Our own Vincent Walstra has been doing very well on disseminating his work and featuring in various media. This is a list of his recent publications and int…

This research sets out to answer the following questions:

In the EU Law Live podcast episode ‘Tax, gambling and the internal market’, Vincent Delhomme discusses the recent Admiral Gaming Network case, dealing with the validity under EU free movement provisions of national tax measures in the field of gambling.

Assistant professor Vincent Chang spoke in various media outlets about the Chinese commemoration of World War II.

In an article for East Asia Forum, University Lecturer Vincent Chang sheds light on China’s ambition to globalise its pantheon of national heroes.

During this award ceremony for alumni op Saturday, 10 February 2018, Vincent Bakker was awarded second prize in Leiden University’s 2018 Thesis Award. These prizes are made possible by the Minerva Reünisten Fund Year 1957/1961/1965, incorporated into the Leiden University Fund (LUF). His thesis supervisors…

On 10 February 2025, Vincent Delhomme attended the official launch of the new EU Health Union Fellowship at the College of Europe (Bruges), where he delivered a two hour lecture on EU health governance.

The Master programme MSc Crisis and Security Management is completely changed. Combined with three main courses for all CSM-students, this new programme offers exactly the combination of in-depth specialized knowledge and general knowledge about security challenges in a globalizing world society and…

On Friday 2 June 2023, Vincent Delhomme, Assistant professor at the Europe Institute at Leiden Law School, successfully defended his PhD thesis entitled : ‘Regulating lifestyle risks in EU law: Promoting health in a diverse market’.

The second and final report on the Netherlands‘ crime-terror nexus has analysed all fourteen profiles of individuals arrested in 2015 for offences of terrorism.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

This project investigates which aspects of social media content adolescents attend to and how these relate to their credibility judgments, aiming to systematically understand their susceptibility to misinformation and inform effective educational programs that foster youth’s resilience to misinforma…

Marieke Liem en Edwin Bakker have published an article in the Dutch Magazine Criminology. The article tells us the following:

Leiden University endorses inclusiveness and diversity. It is open to all those who wish to study or work here, and to develop their full potential. The University is an open community where everyone who wants to contribute to its ambitions and to all that it stands for will feel at home and have equal…

Kuba funerary art from the Congo River Basin

Have you ever wondered what your choices would be, facing a major crisis? Had your thoughts about the course of action taken bij authorities, media, law enforcement or the public in the wake of a terrorist attack?

On Tuesday 30 September 2025, PhD candidate Jonathan Collins will defend his dissertation A Wolf in Sheep’s Clothing: A Mixed-Methods Analysis of the Far-Right Alt-Tech Social Media Movement in Leiden’s Academy Building. His work examines the communication dynamics of far-right communities on alternative…

Jeanine de Roy van Zuijdewijn, researcher and lecturer at ISGA, was a guest on NPO Radio 1 where she discussed the attacks carried out in 2011 by Anders Breivik.

The book addresses the question “How and why do people become involved in European homegrown jihadism?

For already two years, Vincent Niochet has been affiliated with the Leiden Faculty of Archaeology as an external PhD candidate. Now, he has been awarded an NWO PhDs in the Humanities grant, allowing him to continue his research as a paid PhD staff member. ‘The past two years have been quite challenging,…

Vincent Mul is deputy president on the board of The Hague Court of Appeal. Together with Jan Crijns, Professor of Criminal Law and Criminal Procedure, he stood at the cradle of the collaboration between Leiden Law School and The Hague Court of Appeal. ‘By joining forces, we all benefit.’

Terrorist groups adapt to environmental changes to maintain power. This project provides new insights by developing a theory of strategic target selection and using big data analytics and machine learning to test these hypotheses.