On 5 June, Maarten Aalbers defended the thesis 'The balancing of general interests in EU State Aid Law: blurred lines between the prohibition and the compatibility of aid'. The doctoral research was supervised by Pieter van Cleynenbreugel and Stefaan van den Bogaert.

Is the child benefits scandal an omen for the future and will people’s lives soon be fully dominated by algorithms? Assistant Professor of Constitutional and Administrative Law Reijer Passchier warns that the encroaching digitalisation is giving the executive branch even more power, leaving parliament…

Ben Wielstra strives to unravel the evolution of balanced lethal systems. On 1 February he started his own lab at the Institute of Biology Leiden. Wielstra is one of five researchers at Leiden University who has been awarded an ERC Starting Grant in 2018 by the European Research Council. ERC Starting…

In a publication in Science, Noam Zelcer from the Division of Biopharmaceutics describes a previously unrecognized pathway to regulate LDL-cholesterol levels. He is also able to modulate this pathway. This opens the possibility for complementing and improving the efficacy of statins: A class of drugs…

Islamic primary schools contribute to the integration of Muslims in Dutch society, concludes Marietje Beemsterboer in her PhD dissertation. The schools offer children a sense of belonging and prepare them for Dutch society.

An evolutionary 'trap' that has haunted crested and marbled newts for 25 million years: Leiden researchers have uncovered a mysterious DNA error that should not be able to arise – yet persists all the same. How is that possible? PhD candidate James France found new clues.

In a time of growing polarisation and declining trust, the rule of law is under pressure. The system as we know it today only took shape 177 years ago, with the constitutional reform of 1848. Carla Hoetink emphasises: ‘The democratic rule of law was originally designed to prevent violence and revolu…

The student navigator ‘Find your way’ helps students find their way around the university. The ombuds officer for students, Eugène van der Heijden, can also be found on this roadmap. Eugène talks about his work as ombuds officer and what he does for students.

Is the General Data Protection Regulation (GDPR) adequate in ensuring responsible innovation using data analytics? What is the role of ethics with regard to placing limits on technological developments? Does innovation drive business and industry transformations, or does shareholder value maximization…

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

Psychedelic drugs like magic mushrooms and LSD are embraced by some and seen as lethal by others. Cognitive psychologist Michiel van Elk delved into the world of psychedelic drugs and wrote a surprisingly sober book about them. ‘Without first-hand experience my story wouldn’t be complete.’

Trail, FGGA’s internship platform will be one-year old in November. In the upcoming weeks, we will be interviewing some FGGA students who went on internships. What did they learn from their internships? And what tasks were assigned to them?

Calamus javensis is polymorphic. Morphometry and molecular approach resulted in all names used in the complex are regarded as synonyms of C. javensis except C. tenompokensis, which is retained as a distinct species. One variety is here recognized, C. javensis var. polyphyllus (including C. acuminatu…

When general laws and regulations no longer fit individual situations, can customisation offer a solution? In the special issue ‘Maatwerk' (customisation) of Boom Bestuurskunde, researchers have tackled the questions that customisation brings to public organisations. The symposium ‘Maatwerk onder maatschappelijke…

Erwin Muller, Dean of FGGA and Administrator of Campus The Hague, and Koen Caminada, Vice-Dean, share their thoughts on how ‘we’ as a faculty are doing based on three themes. A discussion about the balancing act between what is and what isn’t possible and the natural urge to continue to grow, the utility…

The world around us is changing. What does that mean for the future of Europe, on this turbulent world stage? And what does it mean for our teaching, and for the expectations that Leiden University has of its students? These were the key questions during the opening of the 2018-2019 academic year on…

Sharing a joke with a colleague in your work chat might seem harmless, but just how private is it? Gerrit-Jan Zwenne, Professor of Law and the Information Society, spoke to Quote about privacy at work: 'Employers can’t stop all private communication.'

PhD candidate Sebastiaan van de Lubben has written live blogs about Leiden politics. But how do you go about covering an event while it unfolds? ‘You don’t have time to think while you’re at it.’ Much proved to be unknown about this relatively new journalistic genre.

This book is the first comprehensive presentation of the archaeology of Syria from the end of the Paleolithic period to 300 BC.

Writing a book on the recent history of Leiden University in corona times. For educational and policy historian Pieter Slaman (34), this has meant working in the attic of his parents’ house while they looked after his daughter, along with numerous online conversations and very few, if any, visits to…

The Schengen countries officially abolished border controls, but checks actually still exist. Maartje van der Woude has written a book about these veiled border controls: ‘The danger is that Schengen will have lots of borders, just not visible ones.’

Kool made a conscious choice to work for a non profit organisation. Recently, inspired by the pandemic, she also made a career switch.

‘Leiden University's code of conduct on Integrity is comprehensive and complete,' says Zeger van der Wal, Professor by Special Appointment in Public Administration at the Faculty of Governance and Global Affairs. He is the holder of the Dales chair, funded by the CAOP. Van der Wal's specialist field…

The digital age offers unprecedented opportunities: information is always accessible, systems are interconnected, and processes are automated. However, these developments also give rise to new threats. During the Night of Digital Security on 26 May at the Wijnhaven building, more than experts shared…

As part of its plans to introduce a stricter asylum policy, the Dutch cabinet wants to expand checks at internal borders within the EU. Professor of Law and Society Maartje van der Woude tells Dutch daily newspaper NRC that this is a symbolic measure: ‘Border checks will not counter the right to seek…

How to represent and assess legitimate interests? On behalf of the Dutch Ministry of Interior and Kingdom Relations, Caelesta Braun and Bert Fraussen developed the framework ‘Afwegingskader Legitieme Belangenvertegenwoordiging’ (Assessment Framework Legitimate Interest Representation). The researchers…

Contract means contract? Step-in risk, safeguards and resolution

With the powerful electron microscopes at NeCEN we study abnormalities in cells of blood vessels in cardiovascular disease, the interaction between pathogens and hosts in infectious diseases, molecular processes that cause cancer and the interaction between drugs and target proteins. Drug development…

How do you combine the growth of wind energy with the protection of vulnerable seabirds? With her master’s thesis on this delicate balance, Sofie Hajer won the 2025 Unilever Research Prize. Her work provides new insights into how ecology and policy can strengthen each other.

Alumnus Peter Burger – along with his colleague Alexander Pleijter – is the face of fact-checking in the Netherlands. ‘My degree led straight to this.’

A variety of age checks are required, both in order to protect children and to ensure that they can participate online, a new study funded by the European Commission finds. The article on the study, co-authored by Simone van der Hof, Professor of Law and Digital Technologies at eLaw, was published in…

Just like every other organism on Earth, plants’ ultimate goal is to survive and reproduce. In order to achieve this, they must make trade-offs between where and how to allocate their finite set of resources. Whether they put their resources and energy into their growth, reproduction or maintenance,…

Whilst 2020 has been an unusual and taxing year for colleagues at the Institute of Security and Global Affairs (ISGA), the Institute nevertheless can look back on an impressive range of successful grant applications during the previous year. This impressive result was achieved on top of excellent results…

Do young people who want to change gender have the unconditional right to medical treatment? Pediatric Endocrinologist Martine de Vries, who is also Professor of Medical Ethics, treats transgender children and adolescents. She will discuss this in her ‘Pride Talk’ on 18 September.

Lecture

Every Sunday at 7 pm, you'll be able to join us for either a public film screening or a lecture. Seats are limited and we work on a first-come, first-serve basis. Our doors open at 6:30 and close at 7:15 or earlier in case the lecture room has reached its full capacity (out of safety considerations)…

The Dutch Government would like to allow QR checks at work. Legal experts expect that employees who refuse could be dismissed.

According to a recent court ruling, the reception of asylum applicants in the Netherlands is not in line with European requirements. The Dutch Government must take measures to amend the situation. What are the problems concerning the reception of asylum applicants and how realistic are the court’s d…

It was challenging to get civil servants from the first Trump administration to speak about their work experiences, but sociologist Jaime Lee Kucinskas succeeded. The picture that emerged from her findings, she says, is far from positive. 'The more I spoke with them, the more emotions I saw. They were…

Marliese Vollebregt (BA International Studies, MA International Relations) works at JINC, a Dutch NGO focusing on equal opportunities for children. After graduation, she first became a ski instructor for kids in Austria, something she had dreamed of for a long time. “My biggest advice for all of you…

‘Timmermans says more Polish workers are staying in Poland, but there aren’t any figures to back this up,’ was the headline of NU.nl news website during the European elections in 2019. This was after Nieuwscheckers, the fact-checkers at Leiden University, had checked a statement by PvdA politician Frans…

TikTok’s stricter age checks are a good move, says Bart Custers, Professor of Law and Data Science, in an opinion piece in ‘de Volkskrant’. But he warns of risks related to privacy and discrimination.

FactRank is a new online tool that automatically detects ‘checkable’ claims made by politicians in parliamentary debates or tweets, and therefore enables fact-checkers to work much faster. Alexander Pleijter, a researcher and lecturer in Journalism and New Media, helped develop FactRank.

Nieuwscheckers, the fact-checking initiative at Leiden University, will check the claims made by politicians during the European elections. Lots of individuals and organisations supported their crowdfunding campaign. ‘During the elections, it’s hugely important that the emphasis is on facts, and that…

The center studies the many ways in which issues of law and justice are dealt with in art and literature with a focus on liminal issues and cases. These are issues and cases where law comes to the limits of what it is capable of dealing with and art and literature explore the implications of what is…

There are certainly ten airlines who do not carry out an identity check in the Schengen area upon check-in.

Research from Dutch news organisation NOS shows that gambling companies, including Holland Casino and the Dutch Lottery, have more influence on the creation of new rules on gambling adverts than addiction experts.