Monica den Boer, who has decades of experience within police and defence and was also active as a Member of Parliament (D66), has been appointed extraordinary professor of Police Studies.

Dutch political parties have presented their own 'solutions' to make society 'safer'. How do the party positions compare with scientific research on crime reduction?

On Thursday 15 January 2026, the Meijers Lecture was held and the Meijers Prizes and Van Wersch Springplank Prize presented. Suzan Stoter, Dean of Leiden Law School and portfolio holder for research, introduced the lecture to a full house.

On 16 April 2021 the webinar ‘Children and young adults in contact with the law: Systemic vulnerabilities and institutional responses’ took place. In total 17 speakers and discussants engaged with the topic of vulnerability.

Adults are more likely to reoffend after a short prison sentence than comparable adults with a non-custodial sentence, Leiden University research shows. This is true for the likelihood and extent of repeat crime.

Vice-rector Organisatieontwikkeling en oud-decaan FGGA Erwin Muller start op 1 april 2026 als staatsraad bij de Afdeling Advisering van de Raad van State.

The acquittal of Richard de Mos and his fellow party member has caused quite a stir in the Netherlands. Can De Mos simply return to local politics now? And has the issue finally been settled?

An NWO Veni application by Linda Geven, Assistant Professor at the Institute of Criminal Law and Criminology, has been honoured. She will spend the next three years conducting research into false confessions in police interrogations.

Martin Richardson, who graduated in 1997 from what was then the Leiden LLM Programme in European Community Law (now: Leiden Adv LLM European and International Business Law, EIBL), has recently been appointed as a Senator of the College of Justice in Scotland, meaning that he is now a judge of the highest…

A higher level of legal firearm availability does not lead to more violent deaths in Europe but does lead to more female deaths.

Leiden University is featured by French magazine L’Express as one of Europe’s leading ‘schools of power’, highlighting its Faculty of Governance and Global Affairs and the Institute of Security and Global Affairs in The Hague and its role in training future leaders in politics, diplomacy, and securi…

Het Leids Universiteits Fonds (LUF) heeft recentelijk twee subsidies toegekend voor rechtshistorisch onderzoek. Deze financiering ondersteunt projecten over de bescherming van graftekens en de beperking van maritieme aansprakelijkheid, uitgevoerd door promovendi Eva Drommel en Tim Lubbers.

Oud-studenten gingen op 30 augustus weer de collegezalen in om hun vaste plekje op de banken op te zoeken tijdens Leiden Revisited. Bezoekers konden genieten van inspirerende lezingen, maar ook van een gezellige borrel, buffet, en livemuziek.

Despite being prohibited by law since 1971, race discrimination continues to exist in the Netherlands. Why is this?

Young people being deployed to carry out explosive attacks: how do they come into view, and what motivates them? The podcast 'Action/Reaction: From Attack to Approach' by the research project Close Protection and Surveillance and researcher Sheila Adjiembaks takes a closer look at why and how young…

In a newly published article in East Asia Forum (Australian National University), Salvador Santino Regilme, reflects on the global significance of former Philippine president Rodrigo Duterte’s arrest and trial at the International Criminal Court (ICC) in The Hague.

This week, Bart Custers, Professor of Law & Data Science and Head of eLaw – Center for Law and Digital Technologies, has been named Mr. of the Week by the Dutch legal magazine Mr. The occasion for this is the 40th anniversary of eLaw that will be celebrated this week.

De AIVD gebruikt omstreden hacksoftware van de Israëlische leverancier NSO Group, meldde de Volkskrant. In 2019 zou de telefoon van topcriminineel Ridouan Taghi er mee gehackt zijn.

Instant messaging app Telegram is not faring well in the news – the reason being the illicit activities occurring on the platform. Professor Bart Custers helped Dutch current affairs programme ‘EenVandaag’ respond to questions about the platform.

The Advisory Committee on Public International Law (Dutch abbreviation CAVV) is an independent body which provides the government and parliament of the Netherlands with advice, both solicited and unsolicited, on issues related to public international law.

The pre-university course organized by eLaw, with the support of the Honours Academy concluded on Monday, March 18, 2024. Led by Carlotta Rigotti, the program provided students from various Dutch high schools with a rich tapestry of insights at the intersections of law, technology, and society.

What does it mean to be in a Dutch prison? What is true about the prejudices about being in jail? Criminologist Marieke Liem has released a podcast on Dutch national broadcaster NPO Radio 1: Hotel met tralies.

In February 2023, the International Institute of Air and Space Law and the Kalshoven-Gieskes Forum for International Humanitarian Law organised a seminar on the topic of 'The optimisation of the use of satellite information in the humanitarian domain – Legal and space-related developments' at Leiden…

Packages of DNA strands containing silver, measuring just two or three nanometres in size. Leiden physicists Donny de Bruin and Dirk Bouwmeester create these packages, which can enter living cells on their own. They then activate the silver with light, causing the cells to break down. This could, in…

The energy transition ranks high on the European policy agenda, but what does it take to get there? René Kleijn researches how we can extract, use and reuse raw materials in a responsible way. Since 1 March, he has been appointed professor of Resilient resource supply.

Why do some people with adverse childhood experiences develop mental health conditions whereas others do not? A Leiden research project is looking for volunteers aged between 18 and 24 to help us understand more about human resilience.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

The Mapping Slavery project will place markers that tell the story of Leiden’s slavery past. Why is this important and what does it mean for today’s society? Before the markers are placed, a panel came together on 24 March to discuss the slavery past of not only the city but the University too.

PhD candidate Jiangnan Ding explores how you can design a thick slab of rubber in a way that it might act as a mechanical computer bit. This so-called mechanical metamaterial is pushed in a specific way to change its shape. ‘With a very simple material, we might be able to do simple calculations in…

The energy transition is already a huge challenge for society, but sustainable use of resources is even more complicated. Yet it is at least as urgent. Ester van der Voet has been working on it for decades, for example within the United Nations. Since February, she is a professor at the Centre for Environmental…

Mining for natural resources harms the environment. But we desperately need them, for both the development of countries and the transition to a sustainable energy system. Professor of Sustainable Resource Use Ester van der Voet researches how we can reduce the environmental impact of natural resources…

Physicist Milan Allan will build an instrument that will bring superconductivity research further. He has been awarded an ERC Consolidator Grant of 2 million euros over the next five years. With his PairNoise programme he aims to detect paired electrons as they occur just above the temperature at which…

It was already the most cited publication ever written at our faculty, but now a new milestone has been reached. Last month, a paper by emeritus professor Jan Reedijk and his co-authors surpassed 10,000 citations — and the count keeps rising.

How can we tell whether and how a prehistoric weapon was used? How can we better understand the dexterity and combat skills involved in Bronze Age spear fighting? A research team from Leiden and Göttingen University present a new approach to answering these questions: they simulated the actual fight…

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

One in two people will be diagnosed with cancer. World Cancer Day on 4 February raises awareness of the impact of this devastating disease. Leiden University is conducting various studies aimed at preventing and controlling cancer. Below are just a few examples.

When we work from home, we are extra vulnerable for cyber attacks and data breaches. If you use a personal device to log on to the university network, please create a secure online workplace.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

The legal distinction between victims of human trafficking and victims of migrant smuggling is unjust, argues De Massol Rebetz in her PhD thesis. In certain instances, smuggled migrants should be treated the same as victims of human trafficking.

Do young people trust the law? That is what HC Law students are trying to find out. Regular guest speaker and social worker Carlito Jones invited the students to the Bezuidenhout-West neighbourhood centre in The Hague to talk to youth workers and neighbourhood police officers: what do they run into…

Within a single generation, the digital world has changed completely: from a technical niche for ‘nerds’ to a reality that affects everyone. Cyberattacks, data breaches and system failures can disrupt essential social processes. How can we ensure that our society remains digitally resilient?

Nicolette Heijkant is our guest on the latest episode of Leiden Lawcast. Heijkant is an experienced lawyer who won her spurs working in the legal profession in Amsterdam’s business district, the Zuidas, and is now working for a legal-aid practice in Brabant. In this episode, we speak to her about her…

Quite a lot went wrong during the virtual hearings that courts held during the coronavirus crisis. Researchers from three universities, including Leiden University, concluded that citizens did not always feel heard and that their legal position was compromised.

Many parents whose children have been placed in care do not understand the basis on which the decision was taken. Dutch youth protection organisations and the Child Protection Council must better document why they request such a measure from the Juvenile Court.

From deepfakes and disinformation to killer robots, surgical robots and AI lawmaking: AI (Artificial Intelligence) is changing our world. That raises the question whether this requires some form of regulation. At eLaw, the Center for Law and Digital Technologies at Leiden University, prof. Bart Custers…

Oostenrijk wil online bedreigingen en haat harder aanpakken. Aanleiding is de dood van huisarts Lisa-Maria Kellermayr. Zij maakte eind juli een einde aan haar leven, nadat ze maandenlang werd bedreigd door mensen die tegen coronamaatregelen en vaccinaties zijn.

The Dutch Senate recently voted on a ban on imposing community service after physical violence towards public service providers. Courts are no longer allowed to issue these sentences in case of extreme violence and vice crimes. The punishment for these crimes will be an enforced prison sentence. But…

Labour market reintegration: what is working and what could be done better? These questions were at the centre of Dutch BNR Nieuwsradio's podcast ‘Werkverkenners’. The podcast makers interviewed Anke Ramakers, Assistant Professor of Criminology at the Institute of Criminal Law and Criminology, for answers…

After the episode of TV programme 'Collegetour' featuring Dutch Minister of Finance Sigrid Kaag, more attention is (rightly) being paid to threats made to politicians. Jeroen ten Voorde, Professor of Criminal Law and Criminology, answered pressing questions about this topic on Dutch news programme '…