Are terrorist suspects willing to reintegrate back into society? Can they reintegrate?

In 2012, the Dutch National Coordinator for Security and Counterterrorism and the Dutch Probation Service launched a reintegration project for offenders on probation or parole who were (suspected to be) involved in jihadist extremism or terrorism. The initiative's primary goal was to reduce the chance…

The reintegration of high profile ex-offenders frequently receives great political and public attention. While this attention, more often than not in the form of negative sentiments, may be understandable from a moral perspective, it raises several important questions: how do such offenders reintegrate…

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.

How to minimalize the chance of recidivism for extremist prisoners.

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…

On Monday 28 November 2016, Ton Liefaard spoke at the International Conference on Crime Prevention and Resocialization of Children in Contact with the Criminal Justice System in Chile. In his lecture he discussed European perspectives on crime and prevention and reintegration.

Daan Weggemans, researcher at the Institute for Security and Global Affairs, discusses in the morning podcast of NU.nl whether the Netherlands is able to judge and guide the return of Syrian mothers and children.

On Monday 29 April, Liesbeth van der Heide, researcher at the Institute of Security and Global Affairs of Leiden University, was a guest on the Dutch television programme ‘Nieuwsuur’. She reflected on the interview with Jason Walters, a former member of the Dutch Hofstad terrorist group. The ‘Hofstad…

Edited by Michael Kowalski

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…

People who are arrested on suspicion of preparing an attack are at risk of becoming radicalised either during or after their detention. Whether or not to arrest someone requires careful consideration. At the end of the prison sentence, it is important to provide effective supervision of the reintegration…

The Institute of Criminal Law and Criminology conducts extensive research on imprisonment. Sending a person to prison is the most severe form of punishment that can be applied in the criminal justice systems of European countries. In most countries, the number of prisoners has risen in recent decades.…

How do perpetrators of notorious crimes integrate in society after their imprisonment? Marieke Liem and Daan Weggemans investigated this in in-depth interviews with ten Dutch convicts for murder, paedophilia and terrorism.

The Terrorism and Political Violence research group at Leiden University examines the causes of radicalisation, the tactics of extremist groups, and the effectiveness of counter-terrorism policies. We also explore the role of the media and the influence of postcolonial legacies in the Global South,…

Descolonización, continuidad cultural y re-apropiación de los códices mixtecos en el Pueblo de la Lluvia

Leids onderzoek naar bestraffing komt tot stand uit verschillende disciplines. Het onderzoeksproject kent een juridische, criminologische, sociaalwetenschappelijke en filosofische invalshoek.

On 11 October, Amanda Pasma defended the thesis 'Re-entry support from prison-based and community-based professionals'. The doctoral research was supervised by Paul Nieuwbeerta, Hanneke Palmen and Esther van Ginneken.

On Wednesday 5 February 2025 Milan Ismangil successfully defended a doctoral thesis and graduated.

The position of child victims, globally and in Liberia and their right to physical and psychological recovery and social reintegration covered by art. 39 CRC.

On 19 September 2023 Tabitha Speelman successfully defended a doctoral thesis and graduated.

On 21 November 2018, Lieke Kools defended her thesis 'Essays on wealth, health, and data collection'. The doctoral research was supervised by Prof. dr. K.P. Goudswaard en Prof. dr. C.L.J. Caminada.

Since 2012, thousands of individuals have traveled from Western countries to join jihadist groups in Syria and Iraq. While much has been written about these individuals, only sparse attention has been paid to the social environment of these jihadist travelers and, more specific, the role of family members…

The project examines the political conflict in the Red River Valley of Louisiana between the majority-black Republican Party and the overwhelmingly white Democratic Party by studying the composition and actions of each party.

Although plant domestication has significantly altered crop genetics and phenotypes, its effects on the taxonomic and functional diversity of plant-associated microbiomes are not well understood.

The research focuses on the understanding of symbolic stratigraphy of the land (through time) from the worldview of the People of the Rain (one of the Indigenous Peoples of southern Mexico), by studying contemporary cultural heritage in communities of the Mixtec Highlands.

The Second Chance project aims to promote recovery and re-integration of entrepreneurs who have recently undergone bankruptcy.

Team Dutch and Colonial History

A master's degree in Psychology at Leiden University combines theoretical knowledge with academic and professional skills, making you an attractive candidate for many employers.

In dit unieke uitwisselingsinitiatief volgen studenten van de Faculteit Rechtsgeleerdheid samen met gedetineerde personen een vak, binnen de muren van de gevangenis.

The Life in Custody (LIC) Study comprises a large-scale research project into prison climate and the quality of prison life in Dutch prisons.

Extensive research is being conducted at the Institute of Criminal Law and Criminology on developments in sentencing and punitive measures and how judges and other actors in the criminal justice system reach decisions. Another focus area is how punishments and measures are implemented and the effect…

Scientists of the faculty of Governance and Global Affairs research completely different subject, among which terrorism, cybercrime and migration. In the upcoming weeks we will give the floor to several of our very best researchers. In this episode: jihadism researcher Daan Weggemans.

Fergus McNeill has been appointed as visiting professor at the Institute of Criminal Law & Criminology of Leiden Law School.

The Dutch Department of Justice will give imprisoned terrorists the opportunity to earn money. This should have an positive effect on the resocialisation of detainees.

An exploratory study on the role of family members of those who joined jihadist groups

Researchers from Leiden University have investigated the living conditions of Dutch fighters in Syria. Their report is central to a panel discussion on Tuesday, 24 May.

At the beginning of March 2020, the Dutch Taskforce for Applied Research (SIA) awarded Daan Weggemans of the Institute of Security and Global Affairs a research grant. The Taskforce is part of the Netherlands Organisation for Scientific Research (NWO).

As of 1 January 2020 Daan Weggemans has succeeded Ruth Prins as programme director of the bachelor Security Studies. We asked him several questions about himself and his new position.

Research is at the heart of a solid security policy. That’s why researchers from Leiden are analysing the motives of radicalised people and the biggest risks surrounding digital activity. Read more about their work in the research dossier ‘Security and Threat’.

On 28 January 2015, Prof. Ton Liefaard participated in a panel discussion on

The return payment of 900 euros for Syrian asylum seekers is a striking part of the Dutch policy to promote voluntary return. Mark Klaassen, university lecturer in immigration law, told RTL News he considers the scheme premature and points to the uncertainty about how safe Syria currently is.

On the 25th of February, CTC researcher Daan Weggemans participated in a hearing of the permanent commission for social affairs and employment. During the hearing the issue of radicalization was discussed in two sessions. The first session gave members of parliament the opportunity to discuss the manifestations…

On 15 March, the 28-year-old Australian right-wing extremist Brenton Tarrant committed a terrorist attack on two mosques in Christchurch in New Zealand. Jelle van Buuren, Bart Schuurman, Daan Weggemans and Tahir Abbas all working at the Institute of Security and Global Affairs (ISGA) have been approached…

What insights do eleven social Facebook-accounts of Dutch and Belgic foreign fighters offer with respect to the phenomenon of so-called returnees?

Researchers on terrorism Bart Schuurman and Liesbeth van der Heide (Institute of Security and Global Affairs) studied the files of 159 persons convicted of terrorism in the Netherlands during 2012-2017. Their main question: how effective is the special reintegration project for this type of delinquents…

On 25 October 2017, the current class of students of the advanced LL.M. programme International Children’s Rights visited juvenile detention center ‘De Hunnerberg’ in Nijmegen (the Netherlands).

On Monday 2 September, a computer malfunction severely crippled several hospitals in the Dutch province of Gelderland. Which had a huge impact on patients’ appointments. Daan Weggemans, researcher at the Institute for Security and Global Affairs (ISGA) was interviewed on the issue by Dutch regional…

On Monday, 25 April 2019, a video appeared on the Internet where IS leader Abu Bakr al-Baghdadi was seen and heard. The Islamic terror group IS has distributed this video on the internet. Baghadadi has not appeared in public since 2014.