It has been found that the better a prisoner is treated, the more effective the sentence. Leiden criminologists therefore research how detention can be improved in such areas as prison life and contact between prisoners and their children.

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.…

The Prison Project investigates to what extent imprisonment has consequences for the relapse, health, career and intimate relations of the (ex-)prisoners.

What should the EU do to support Ukraine, Belarus and Moldova? How can the European Union adapt its policies towards these countries in a very difficult and challenging geopolitical context?

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 5 September 2019, Jennifer Doekhie defended her thesis 'Dimensions of desistance: A qualitative longitudinal analysis of different dimensions of the desistance process among long-term prisoners in the Netherlands'. The doctoral research was supervised by Prof. P. Nieuwbeerta.

Ten years ago, a new reward system was introduced in Dutch prisons: the only way prisoners could earn extra ‘freedoms’ was through good behaviour. Jan Maarten Elbers concludes that this system does little to encourage behavioural change and can even be counterproductive.

Hilde Wermink, Assistant Professor at the Institute of Criminal Law & Criminology was interviewed on this topic for an article published in US News on 13 May.

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

NWO has assigned Physics Vrije Programma grants to five collaborations of physicists. Leiden University is involved in three of them.

A punishment that fits the crime is the cornerstone of the rechtsstaat or constitutional state. But opinions differ greatly on what constitutes a just and effective punishment. Research by Leiden University provides politicians, legislators, law enforcers and the public with new information and insights…

Radical books on Islam glorifying armed jihad and humiliating Jews and Christians are available in the Vught prison library.

Researchers at the Institute of Criminal Law and Criminology - Paul Nieuwbeerta, Anouk Bosma, Esther van Ginneken, Hanneke Palmen and Maria Berghuis - have received 800,000 euro from the Dutch Custodial Institutions Agency (DJI) of the Ministry of Security and Justice to investigate living conditions…

Despite various initiatives it appears that it is no simple task to get ex-prisoners back on the job market.

Some offenders are given short prison sentences. They tend to be people who are generally not faring well before they go to prison; they may have difficulty finding a job for instance. A short spell in prison can make them even more vulnerable. Attention therefore needs to be paid to continual supervision…

On 16 January 2020, Maaike Wensveen defended her thesis 'Eigen haard is goud waard?'. The doctoral research was supervised by Prof. P. Nieuwbeerta and Dr. J.M.H. Palmen.

On 22 June, Najib Amin defended the thesis 'State-building, lawmaking, and criminal justice in Afghanistan: a case study of the prison system’s legal mandate, and the rehabilitation programmes in Pul-e-charkhi prison'. The doctoral research was supervised by Jan Michiel Otto and Pauline Schuyt.

In films kunnen de meest wonderlijke acties plaatsvinden. Maar zijn die acties in de 'echte' wereld ook mogelijk? En in hoeverre houden filmmakers ons voor de gek? Tijdens het Leiden International Film Festival komen film en wetenschap samen.

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

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…

How to minimalize the chance of recidivism for extremist prisoners.

Everyone most obey the law. If you don’t, you will face the police and the courts. The application of national, European and international criminal law would seem to be a matter of following the letter of the law. But the reality is more nuanced. Criminal law scholars and criminologists from very different…

Het CPL biedt opleidingen voor hogeropgeleide professionals: starters, ervaren professionals en leidinggevenden.

On Thursday 12 January 2017, Ellen Raaijmakers defended her doctoral thesis ‘The Subjectively Experienced Severity of Imprisonment: Determinants and Consequences’. The defence took place at the Academy Building of Leiden University, Rapenburg 73. The PhD research was supervised by Professor P. Nieuwbeerta…

Sentencing is becoming increasingly complex for the courts. Legal scholars and criminologists from Leiden document the process of sentencing in the Netherlands. They use this knowledge to advise legislators and those who implement this legislation on how to make sentencing more consistent and effect…

De inschrijvingen voor de Mmmonk school zijn geopend. Mmmonk School biedt een interdisciplinair praktijkgericht programma over middeleeuwse Vlaamse manuscripten. Experts geven een inleiding bij de belangrijkste concepten, methodes en vaardigheden uit hun discipline. De lessen zijn online, gratis, en…

If you want to maintain a valid penal system, you have to continue to ask the big questions on punishment. Why do we punish people? What is permissible for the government and what is not? Philosopher of Law Jeroen ten Voorde examines these kinds of questions and keeps his academic colleagues and the…

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

Public organizations have been confronted with severe budget cuts as a result of the most recent crisis. Public managers are tasked with the implementation of cutbacks. Using different case studies within Dutch ministries and the prison sector, we assess public managers’ change leadership in times of…

The ultimate aim of the project is to find out whether there are such things as

The research program of the QO group has three leading themes: Optical Physics, Quantum Optics, and Photon-Matter Interactions. We work mostly at the boundaries between these themes with entanglement as a bridging and binding agent.

The Dual PhD Centre facilitates dual PhD research at Leiden University. The dual PhD programme of the Dual PhD Centre offers professionals the opportunity to devote part of their working time to conducting PhD research. Be aware that this programma is being offered in Dutch only.

The goal of the field of Applied Linguistics is to apply the findings and the techniques from research in linguistics to solve practical language-related problems in society.

In this theme you will be supplied with a firm background in the core of current computational linguistics and a solid comprehension of its neighboring fields.

Theoretical linguistics seeks to understand the underlying principles of the nature of human language.

To make successful communication possible, people need much more than their knowledge of the language system.

Describing a new language for the first time is an exciting and challenging intellectual experience.

Find out how to apply for Comparative Criminal Justice (MSc) at Leiden University by following our step-by-step guide.

The research group Diplomacy and Global Affairs focuses on international diplomacy, international organisation, global, transnational, multi-level and comparative governance. Among key research topics are the European Union and the United Nations, EU current enlargement policy, rule of law in the EU,…

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.