What are the various forms of inter-organizational collaboration in the public safety sector? How are different forms of inter-organizational collaborative arrangements related? What is the relationship between inter-organizational collaboration and innovation in the public safety sector?

New book on Dutch mayors governing local order and public safety.

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

Acquiring and maintaining public support is frequently cited as an important requirement for governments fighting non-state actors. But how exactly can public support influence the course of counterterrorism campaigns and thereby contribute to an escalation or de-escalation of violence?

Can conspiracy constructions explain for hatred of the system? And if so, should conspiracy constructions be considered to be a risk in terms of national security?

How do European Muslim men and women become involved in a violent jihadist struggle abroad?

Scholars have long debated the intentions of the Muslim Brotherhood in the Middle East. Some claim the organization supports terrorism, while others believe it is a positive force for democratization.

The Netherlands Ministry of Defense and Ministry of Security and Justice have requested the Centre for Terrorism and Counterterrorism to complete a research project on cyber governance from a policy perspective. The results of this project will contribute to the deliverables of the fourth International…

Intelligence of the crowd, or in other words, intelligence of a large, random collective, exists mostly in social media platforms such as twitter. The collective does not comprise (at least not necessarily) experts on crises, just regular people mostly. Nevertheless, there is valuable intelligence to…

Terrorism has been one of the most important threats to peace, security and stability in many parts of the world. But what does this mean? What is the nature of this threat? What can be done about it and how can we at least limit the impact of terrorism?

You’re about to start your minor at Leiden University. Make sure you are well prepared and get your studies off to a good start.

An international comparative study of the Netherlands, Belgium, Denmark, France, Germany, the United Kingdom and the United States.

During the 1980s and early 2000s, authors like Alex Schmid and Andrew Silke demonstrated the paucity of first-hand insights being used to study terrorism and the consequences this had for the reliability of the findings beings presented. But to what extent have these issues endured?

This project aims to improve understanding of, and responses to, the phenomenon of lone actors through analysis of comprehensive data on cases from across Europe.

How do the pathways of Dutch converts to Islam involved in jihadist movements differ from those of Dutch converts who are not, in terms of their life prior to Islam, their conversion experience and the form of involvement with the Islamic community after conversion?

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…

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

Promotor: Prof.dr. M. Danhof, Co-promotor: O.E. Della Pasqua

Do large deletions represent a risk during CRISP/CAS9-mediated genome editing in plants?

Study information

Study information

Study information

Terrorism experts Daan Weggemans (Leiden University) and Beatrice de Graaf (Utrecht University) conducted one of the first scientific studies on the societal reintegration of jihadist former detainees. They showed that the reintegration process isn't without problems. Their conlusions are presented…

The research group Cyber Security Governance will provide cutting-edge academic research in the domain of cyber, where modern technology interacts with traditional concepts such as governance, sovereignty, law-enforcement, international relations and conflict.

Book on Dutch mayors governing local order and public safety.

The ‘Toetsingscommissie Inzet Bevoegdheden’ (TIB), an independent Dutch committee overseeing intelligence efforts and competences, is facing criticism on its supervision of the Dutch intelligence services. ‘Whether the increased supervision is hurting (national) security, can really only be determined…

The precise psychobiological mechanisms leading to chronic physiological stress responses have not been sufficiently explained, although stress is a major risk factor for disease and early death. A problem for conventional stress theory is that most of these responses seem to occur in situations without…

Comparing terrorist attacks with falling off a step ladder is absurd, writes Jeanine de Roy van Zuijdewijn in NRC Handelsblad on 27 September 2017.

Join this lecture from professor Daniel Aldrich at the Spanish Steps in Wijnhaven on Wednesday 3 November. Dr. Sanneke Kuipers, associate professor in Crisis Governance, will be the moderator of the lecture and she and professor Aldrich give us a preview of the event.

The research group on governance of crises studies phenomena, dynamics and actors related to crisis governance. The Leiden University Crisis Research Center (CRC) is part of this Research Group.

With this podcast series 'Introduction to Security Studies', you will get to know more about the bachelor's programme Security Studies at Leiden University in The Hague and life as a student in The Hague.

Professor Edwin Bakker, director of the Centre for Terrorism & Counterterrorism, released his new book “Terrorism and Counterterrorism Studies: Comparing Theory and Practice”, published by Leiden University Press.

Marieke Liem wrote a contribution for DJIzien, a magazine published by the Dutch Custodial Institutions Agency (Ministry of Justice and Security), about her meetings with long-term prisoners. ‘For my research on long-term prisoners I made numerous visits to Dutch prisons. During these visits, I came…

On Thursday 7 February 2019, the graduation ceremony for the executive master programme Cyber Security took place at The Hague Security Delta (HSD). The Cyber Security programme is a collaboration of University Leiden, Delft University of Technology, and The Hague University of Applied Sciences. A total…

Five students who graduated from the Bachelor Security Studies share their experiences. Where did they end up after graduation? Are they still using the skills they gained during their studies?

Bart Schuurman, Assistant Professor at the Institute of Security and Global Affairs in The Hague, has received a Veni grant which will allow him to continue his research into the radicalisation of terrorists for the next three years. ‘In order to better understand terrorists, I will focus on the large…

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

A juvenile suspect has been apprehended for the murder of 15-year old Megan from Breda last Monday. A highly unusual situation, according to Marieke Liem, Associate Professor at the Institute of Security and Global Affairs in The Hague. She gave an interview to Dutch newspaper AD.

On 18 March 2019, Gökmen Tanis shot three people in a tram in Utrecht. He shot a fourth victim after exiting the tram on the 24 Oktoberplein. On 1 July, the criminal trial against Tanis started with presumably only one possible outcome: a life sentence.

Security in the broadest sense of the word was the key focus in the Interfaculty Conference on 4 April in Leiden. With almost 200 attendees and such well-known speakers as Dick Schoof, Pieter van Vollenhoven and Ad Verbrugge, the first conference was a success.

On Wednesday 22 July, Professor Maartje van der Woude will hold a webinar for Nusantara University (Indonesia). Her lecture is entitled ‘Governing Through Crises: Civil Liberties Under Pressure’.

On 20-21 June, the Society for Terrorism Research (STR) held its annual conference in Oslo. The Center for Research on Extremism (C-REX) of the University of Oslo led by Professor dr. Tore Bjørgo hosted one of the main academic conferences in the field of terrorism studies. The central theme was the…