Few events have influenced our global order as intensely as the events of September 11, 2001.

This research paper was requested by the European Parliament's Committee on Civil Liberties, Justice and Home Affairs. It was published by the International Centre for Counter-Terrorism (ICCT) in The Hague. Leiden University is one of the participating institutes in this publication and our researcher…

Research goal: To support the design of technologies (counter-measures and communication measures) for the prevention, interdiction and mitigation of lone actor extremist events (LOEEs), which are hard to anticipate, yet can be highly damaging to local and national communities and therefore must be…

A growing amount of literature is being devoted to interrogating gendered dynamics in both violent extremism and terrorism, contributing to the integration of international and feminist security. This includes how such dynamics can shape differences in the motivations and participation of women and…

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.

Understanding the evolving landscape of extremism in the 21st century.

De vraag is hoe groot de dreiging van het rechts-extremisme is in Nederland? Nikki Sterkenburg spreekt hierover in Trouw en RTL Nieuws.

Terrorist attacks are not an end in themselves, but a means of creating unrest and fear. Terrorism policies and research should focus more on managing fear and social unrest.

In December 2014, Leiden University’s Institute of Security and Global Affairs with the Australian National University’s Asia-Pacific College of Diplomacy and the International Centre for Counter-Terrorism, commenced a research project to assess how (temporary) military interventions can best prepare…

What are the mechanics of soft materials (e.g. foam, sand)?

A team led by Dr. Yannick Veilleux-Lepage (Institute of Security and Global Affairs) and Joris Larik (Leiden University College The Hague) have secured research funding from the Canadian Department of National Defence and Canadian Armed Forces funded RWE-CAF Research Network.

Investigating neurobiological endophenotypes of Social Anxiety Disorder

Lecture, LUCIS What's New?! Series

In this article, Jeanine de Roy van Zuijdewijn and Edwin Bakker provide a big picture reflection on two decades after 9/11 in Western Europe.

On 7 and 8 November 2024, the International Centre for Counter-Terrorism (ICCT), the Institute of Security & Global Affairs at Leiden University, and The Netherlands’ National Coordinator for Security and Counter Terrorism (NCTV) partnered to host a ‘Blue-Sky’ Terrorist Exploitation of Artificial…

This paper examines the need and possibility for developing online resilience-based approaches in response to COVID-19 vaccine conspiracies, often linked to the far right.

This paper critically compares seven widely used risk assessment tools for violent extremism, including the VERA-2R, the ERG 22+, the SQAT, the IR46, the RRAP, the Radar, and the VAF.

The rise of extremism in Europe has increased polarisation. The EU-funded DRIVE project, led by Tahir Abbas, Professor of Radicalisation Studies from Leiden University’s Institute of Security and Global Affairs, explores how social, structural, and individual factors contribute to radicalisation, offering…

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

It is in the interest of all democracies for young people to learn the value of free debate, even on sensitive and potentially divisive issues like terrorism, argue Thorbjørn Jagland (secretary general of the Council of Europe), Sayeeda Warsi (UK parliamentarian), and Francesco Ragazzi (Institute of…

This collection includes six short policy-focused contributions exploring how legislation and policy on counter cyber terrorism unfold at the national level in the United States, the United Kingdom, China, Russia, France, and at the regional level of the European Union.

An interview with Assistant Secretary General for Emerging Security Challenges David van Weel, and NATO Secretary General’s Special Representative for Women, Peace and Security (WPS) Clare Hutchinson

Do children growing up in a jihadist or right-wing extremist household develop the same extremist views as their parents?

On Saturday 15 February 2020, the Leiden University Thesis Prizes were presented during the Dies celebration day for alumni. Joint first prize went to Vincent Peeters, who was awarded a cum laude master's degree in Criminal Law and Criminal Procedure in August 2019.

This report examines the questions

What is the current relevance of the ethics of counterterrorism and what is the added value of ethics support within the practice of counterterrorism?

Jasper de Bie, who obtained his doctoral degree at the Institute of Criminal Law & Criminology and who is currently employed by the Ministry of Security and Justice, has been awarded an honourable third place in the international competition 'TRI Award for the Best Doctoral Dissertation on Terrorism…

On 17 August 1945, two days after the Japanese surrender that also brought an end to the Second World War in Asia, Indonesia declared its independence. The declaration was not recognized by the Netherlands, which resorted to force in its attempt to take control of the inevitable process of decolonization.…

‘We want to say something very different from the norm. We are the radicals now.’ Tahir Abbas is lyric about the DRIVE project he will be leading from Leiden University in The Hague. This is a short introduction to the research that will be carried out in the Netherlands, Denmark, Norway and the United…

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.

In the Master's programme Crisis and Security Management, specialisation Governance of radicalism, extremism and terrorism we focus on the academic body of knowledge on different form of protests, contention, resistance and violence. We explore and explain the emergence of radical and extremist move…

The Farm to Fork Strategy seeks to transform the EU food system towards greater sustainability. To do this, Vincent Delhomme argues, some of the traditional concepts and doctrines in EU internal market law need to be challenged and rethought.

Global climate change is manifest by local-scale changes in precipitation and temperature patterns, including the frequency of extreme weather events (EWEs). EWEs are associated with a myriad range of adverse environmental and societal consequences, including negative impacts to agriculture and food…

Front-of-pack nutrition labelling, origin labelling, regulation of voluntary green claims made by food business operators: the EU is currently looking into various reforms of the legal framework for food information to consumers. The goal: healthier and more sustainable diets.

In 2010, the remnants of a 16th century indigenous village were discovered in St. Vincent, on the construction terrain of the new International Argyle Airport.

On 8 March 2023 Helen Duffy, Professor of International Human Rights and Humanitarian Law in Leiden, published a monograph on Global Trends in Counter-terrorism and the Implications for Human Rights in Africa.

Vincent Bakker, PhD Candidate at the Department of Economics, was awarded the Research Master’s Thesis Prize 2017 of the Faculty of Social and Behavioral Science.

In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…

Ragazzi, ‘Suspect community or suspect category?‘, Journal of Ethnic and Migration Studies

The question of how military interventions can best transition to a long term counter-terrorism policy forms the core research question of three interlinked reports. This research project has been completed with support of NATO’s Science for Peace and Security Programme. Leiden University researchers…

This August, the second edition of the Advanced Summer Programme

From 16 to 18 August, 30 participants from 18 different countries gathered online to participate in the Online Summer Programme: Preventing, Detecting and Responding to Violent Extremism, organised by Leiden University’s Centre for Professional Learning (CPL) together with the International Centre for…

Vincent Bakker has won the 2017 Thesis Prize of the research master’s programme Political Science and Public Administration. His study of labour market effects of social investment policies is the crowning achievement of Bakker’s work as a MSc student. It also marks the start of his academic career.…

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.

Training a robot in a real-life environment is more or less impossible. Computer scientist and psychologist Roy de Kleijn switched to training in a simulated, virtual one instead. ‘You do have a reality gap, but the more precisely you train the robot, the better it is in practice.’ His inspiration:…

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