The progression of EU law: Accommodating change and upholding values Coordinator: Dr. Moritz Jesse

The ‘spreidingswet’ (dispersal law) has been passed by Dutch Senate and will take effect on 1 February. In the municipality of Westland, however, a majority in the council is unwilling to create 700 extra reception places.

Are you eager to learn how to shape governance solutions to complex environmental challenges? Are you passionate about fostering a more inclusive, just and sustainable world? Then this master’s is the right fit for you.

Majorana particles have been getting bad publicity: a claimed discovery in ultracold nanowires had to be retracted. Now Leiden physicists open up a new door to detecting Majoranas in a different experimental system, the Fu-Kane heterostructure, they announce in Physical Review Letters.

Recently, Facebook and Cambridge Analytica have become highly polarizing figures in a data privacy scandal of global (and potentially historic) proportions. What does the Facebook and Cambridge Analytica controversy tell us about data privacy and cybersecurity in the age of Big Data?

The Geneva Conventions and customary international humanitarian law clearly prohibit any attacks on medical units and establishments during armed conflicts. Unfortunately, despite this clear prohibition, medical personnel and medical facilities continue to be the subject of attacks. Doctors now risk…

Our Master Law in European and International Human Rights Law (LL.M.) looks at the various human rights protection mechanisms from a comparative perspective

The Department of Child Law and Health Law focuses in its education on the legal position of the child in national and international law.

Higher temperatures are resulting in changes to vegetation and soil in mountain areas throughout the world. An international research team including Leiden ecologist Ellen Cieraad published an article on 25 January in Nature on the disruption to the ecosystem.

Much of the work of Serge Fehr, Professor of Quantum Information Theory, is abstract and theoretical and comprehensible to very few people. But his work helps make the digital world safer so that in future our internet banking will still be problem free, for instance. He will explain more in his inaugural…

The Grotius Centre for International Legal Studies & The Kalshoven-Gieskes Forum on International Humanitarian Law cordially invite you to a Panel Discussion on “The Dynamics of the Syria Conflict: Challenges for Contemporary International Law” .

Identifying the gaps in the legal framework for EU activities in the maritime security domain, and specifically in the areas of combating piracy, human smuggling or trafficking and drug trafficking.

The project 'Policing the high seas: maritime law-enforcement in a multi-actor environment' aims to identify the gaps in the legal framework for EU activities in the maritime security domain, and specifically in the areas of combating piracy, human smuggling or trafficking and drug trafficking.

During the Conference of the European International Studies Association (EISA) that takes place at 5-9 September 2023 in Potsdam, Germany, both Jan Aart Scholte and Valentina Carraro presented their research. Jan Aart presented his work on ‘Governing the Internet through South-Based Regional Private…

At one time, the railway from Kimberley to Kambove in Southern Africa symbolised prosperity and progress. Today, the exhausted mining towns along its route are marked by decay and pollution. Professor Jan-Bart Gewald has been awarded an NWO L grant to investigate the long-term global consequences.

The European Research Council (ERC) has awarded chemist Dr Alexander Kros a Starting Independent Researcher Grant of 1.4 million euro. He will be using the grant to study how molecules penetrate the natural barrier of a cell membrane. If his research is successful, it will in time bring about a revolution…

Leiden University is ending the experiment with the Binding Study Advice in the second year of the bachelor's programme (BSA 2) with immediate effect. Under the terms of BSA 2, students were required to obtain 90 credits within two years, including their first-year diploma.

Leiden Law School is pleased to announce the launch of two new Advanced Master’s programmes: Global and European Labour Law and International Dispute Settlement and Arbitration. The NVAO on-site visit took place at the end of November 2017 and we recently received a positive decision for both progra…

The need for novel drugs as well as innovations in their development and application is as urgent as ever. Below we present our vision , mission, and our key research areas.

Nanoplastics influence the behaviour of larval zebrafish, says new research by the Institute of Biology Leiden (IBL) and the Institute of Environmental Sciences (CML). The researchers observed that a certain type of nanoparticles leads to stress reactions in the sugar balance, resulting in hyperactivity…

Dr Irene Groot (LIC) has been appointed professor of Surface and Interface Science with effect from 1 March. The appointment is an honour for Groot. 'It feels like recognition of your research, teaching and leadership qualities.'

On 22 June, Professor Haentjens held a lecture at the University of Milan. He was invited to speak on the topic of the applicable law to the assignment of claims.

Leiden scientists and companies receive 1.37 million euros to develop technology for the Einstein Telescope. This underground telescope will measure gravitational waves and must therefore be extremely sensitive. To that end, the consortium conducts research on the damping of vibrations at temperatures…

The balance is positive: the faculty is growing faster than expected, reserves have been built up, and new programmes are attracting many students. At the same time, rapid growth requires realistic budgets, targeted staff expansion and agility in changing circumstances.

One of the most crucial aspects of our behaviour is our motivation to explore novel environments and interact with new people. This became painfully clear during the COVID-19 lockdowns, when many people suffered from lack of new experiences and real-life social interactions. The relevance of novelty…

These podcast episodes were written for the Green Office’s Spring Podcast competition and miniseries 'Beyond the Safe Space', on the theme: the Planetary Boundaries, which took place between the months of March-May 2023.

Every year in the Netherlands, thousands of children are placed in out-of-home care because their parents are unable to look after them properly or because the children are at risk.

The effect of the pilot Teen courts will be evaluated by means of a programme, process and effect study based on qualitative research methods.

As a Leiden University’s master’s student in Political Science you conduct independent research and report your findings to fellow academics and, who knows, to a larger audience. Your thesis is a showcase of your academic skills and personal interest, and perhaps even passion. Easier said than done,…

On Tuesday 23 May, Jelle van Buuren, assistant professor at the Institute of Security and Global Affairs, was a guest at the Dutch news programme Pauw. As expert on terrorism he discussed the attack in Manchester at the concert of pop star Ariane Grande.

From pipetting in the lab to shining in front of the camera at a global student event. With 8.000 viewers watching the livestream, Marjolein Crooijmans presented the iGEM Giant Jamboree in Paris.

Directing soil life and thereby influencing what grows above ground: that is the expertise of Leiden biologist Martijn Bezemer and his colleague Wim van der Putten (NIOO-KNAW). Their research on soil transplants has been nominated for the Huibregtsen Prize 2023. This prize goes to innovative research…

This academic year saw the start of the Change Lab(oratory) project. Teaching staff from various departments worked on innovations in their master's courses: 'It’s a privilege to improve your teaching and get so many useful tips in the process.'

Under 18, no alcohol. In spite of this slogan, adolescents still have access to alcohol. But how harmful is that one beer for the adolescent brain? Research, including in Leiden, may provide the answer.

The court has dismissed Ratko Mladić’s appeal and upheld his life sentence for genocide and war crimes. The verdict is one of Yugoslavia tribunal’s last. Mission accomplished?

The Executive Board has appointed Professor Harold Linnartz as Professor of Laboratory Physics with effect from 1 June 2011. Linnartz has worked since 2005 as senior lecturer at the Leiden Observatory.

Vasiliki Kosta acted as a speaker during the Dutch-German Science Days held on 26 and 27 November 2025, on the overarching theme ‘Academia in times of global crises: How to deal with the effects on our systems? What can we learn from each other and what can we do together?’.

From fake news via WhatsApp to mini hearts from a 3D printer: four Leiden researchers have been awarded a Consolidator Grant by the European Research Council. These grants, of up to 2m euros, enable researchers to establish or expand their research team and continue to develop their career.

The Repository from the Drug Disease Model Resources (DDMoRe) consortium provides a home to a collection of computational models of disease and drug action that have been used in pharmaceutical and/or academic research. This publically available open-access resource will make it easier for researchers…

Erik de Maaker and Radhika Gupta received a Seed Grant to initiate research on how heritage has been and can be mobilised to address climate change governance in Himalayan Asia. This project will address a significant knowledge gap on the potentials and pitfalls of climate governance, with an initial…

Contemporary societies experience numerous crises, risks and disasters. In this minor, you will explore each of these themes in relation to grand challenges such as climate change, intensified disasters, cybersecurity incidents, and risks associated with emerging technologies.

Martina G. Vijver has been appointed professor of Ecotoxicology at the Institute of Environmental Sciences of Leiden University with effect from 1 December 2017.

Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:

Rahul Gandhi, former president of the Indian National Congress, was on the Hague Campus on 10 September.

Traditionally, at the beginning of each new calendar year, Leiden Law School awards the Meijers Prizes for the best article in the previous year for each Faculty research programme.

Our immune system protects us against disease, but every now and then, something goes wrong: an enemy invades our bodies or our immune system attacks our own cells and we become ill. Doctors and researchers at the Leiden University Medical Center (LUMC) want to be able to manipulate the immune system…

Johan Jol will defend his report during the Annual Conference of the Netherlands Association for Comparative and International Insolvency Law (‘NACIIL’). The title of his report is: ‘The future of international restructurings after the implementation of WCO II and the amendment of EIR, the best is…

All Leiden alumni, students and anyone else who might be interested is welcome to attend the online Cleveringa Meeting in Leiden on Wednesday 25 November entitled 'The Corrosion of International Relations'.

Moritz Jesse, Associate Professor at the Europa Institute in Leiden, provided the key-note lecture at this year’s annual conference of the German-Dutch Lawyers Association. The lecture was titled “The other’s amongst us – Third-Country Nationals and Brits in the EU”.