If you have a question, there are various ways to get in touch with us.

LAPP students Emily den Boer and Louise Floris, together with Esther Kentin, wrote about the proposal for a plastic bottle deposit return system that has been discussed in the Dutch Parliament in April 2019.

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

On the 13th of February, Matthew Sung successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Matthew on this achievement!

The use of Artificial Intelligence (AI) to optimize Magnetic Resonance Imaging (MRI),

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

On 28 December 2019, Dutch newspaper Trouw published an essay by Constant Hijzen, Assistant Professor Intelligence Studies at the Institute of Security and Global Affairs and the Institute for History. In the essay, he discusses two books on a new genre of espionage: the authors provide access into…

Recently, Jaap van den Herik, professor emeritus Law and IT, was interviewed by the BNVKI (Benelux Association for Artificial Intelligence).

It is often claimed that social media can contribute to democratic decision-making by bringing politicians and citizens into dialogue with one another. But is this potential always realised, and how? Most researchers look at politicians and their online communication strategies. In this New Media &…

An interdisciplinary consortium consisting of Leiden University, the University of Amsterdam (UvA) and Statistics Netherlands (CBS), receives €1 million to build an open digital infrastructure for network analysis of the entire Dutch population. This will allow scholars and policymakers to gain crucial…

Computer says no: end of story. Twenty years ago, a hilarious line in the British TV series Little Britain, now a reality. We all blindly follow technology at times, with varying consequences. For ISGA lecturer and researcher Daan Weggemans, it's a subject worthy of a PhD.

Webinar, Q&A, discussion

Two book launches

Op zaterdag 23 september organiseert de NBV haar jubileumcongres in CODA Apeldoorn, rondom het thema ‘Technologie en transformatie’, tevens het thema van het Jaarboek 2023 dat deze dag gepresenteerd wordt. Er is ruimte voor posterpresentaties, in principe voor studenten/jonge onderzoekers, maar andere…

Global notebook (GN) is an educational and socially responsible startup, created by two LU alumni. They built an exciting program, combining Brussels and The Hague, in the form of a week long international student conference - global notebook conference (GNC). Young curious minds from all over the world…

The powerful Dutch East India Company and West India Company were summoned before the High Court more often than historians have assumed. The complainants varied from competitors, to the Companies' own staff and even poor citizens. This is what Leiden historian Kate Ekama has discovered. PhD defence…

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

Professor Mirjam de Bruijn will research digital warfare in the North African Sahel with an NWO Open Competition grant. The focus of the research will be on Fulani social networks in war and cultural violence.

Combining cutting-edge quantitative approaches with more traditional book history approaches, this new book offers the first history of medieval manuscript destruction in England from the medieval period to the present.

Seminars, workshops

An assessment of Libyan legislation

IAt the Criminal Justice Public Lecture on 20 April, Professor of Law and Society Maartje van der Woude spoke about her research into decisions and practice in relation to intra-Schengen border areas and the free movement of persons. The thinking behind the Schengen area is that where the external borders…

Archives were a common target during the Second World War, and hundreds suffered damages. Among these archival losses, the losses to medieval manuscript collections stand out.

Holtz defended her dissertation ‘Collective human rights as an (onto)logical solution to climate change: reconceptualizing, applying and proceduralizing an overlooked category of human rights’ on 16 October 2025. The doctoral research was supervised by Carsten Stahn and Daniëlla Dam-de Jong.

EU-landen werken aan een gezamenlijk en strenger asielbeleid om verschillen tussen lidstaten te verkleinen en het asielbeleid beter te beheersen. ‘De kern van het pact is dat het asielbeleid nu echt Europees wordt’, zegt Mark Klaassen, universitair docent migratierecht, in EenVandaag.

Hoe kijken Nederlandse bedrijven naar online prijsdiscriminatie? Kimia Heidary, Bart Custers, Helen Pluut en Jean-Pierre van der Rest schreven hier een artikel over.

Professor Nico Schrijver is professor of public international law at Leiden University and currently the president of the Institut de Droit international /International Law Institute, the most prestigious international law institute which was established in 1873 and which for the quality of its work…

On the 27th of October the 7th conference - organised by the Centre for European Company Law (CECL) - will be held in Rome, Italy.

The Cambridge Studies in International and Comparative Law is the leading general series for monographs in international law which will celebrate its 70th anniversary next year.

Late June EP Nuffic awarded a capacity building project in the field of Transnational Law, Asset Recovery and International Investment Arbitration at the Faculty of Law at Universitas Indonesia in Jakarta. The successful consortium brings together experts from VU University Amsterdam, Leiden University…

Despite the covid-19 pandemic, the 2019-2022 Erasmus+ International Credit Mobility project between Leiden Law School and the University of Tirana was successfully finalized.

Since 1 September 2017 Aagten works at the Institute. Her main area of interest includes asylum and refugee law and therefore she will be co-teaching the courses European Asylum Law, Immigration Law (Dutch course), Migration Law and Policy in the EU and Children and Migration (Dutch course).

On 15 April 2017, the Journal of WTO and China published Richard Jiang's article entitled 'Can Public International Law Play a Role in China - Raw Materials II?'

In what ways and to which extent are the systems of national administrative law becoming Europeanised? What role do EU legal principles play in this process? Are EU legal principles smoothly absorbed in national law and practice, or do the principles encounter resistance? Which legal principles attract…

The Van Vollenhoven Institute for Law, Governance and Society (VVI), in collaboration with the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV), will organize a two day conference on the continued importance of adat law in present day Indonesia on 22 and 23 May 2017.

From 21 August to 24 August, a Chinese delegation together with the Raoul Wallenberg Institute of Human Rights and Humanitarian Law (RWI) conducted a study visit to Leiden Law School at Leiden University. Leiden Law School’s Child Law Department organized the study trip.

Labour law professors have shaped research and education in Leiden since 1936. From the rise of trade unions to the AI revolution, the field has constantly evolved. Major changes are on the horizon again in 2026. 'Labour law will always be important.'

On Thursday 7 and Friday 8 December 2017, Leiden University’s Hazelhoff Center for Financial Law and the European University Institute in Florence jointly organized a PhD workshop in Leiden.

The Europa Institute is proud to announce that Leiden University has won the prize for Best Written Memorials at the 2014/15 European Law Moot Court Competition (ELMC) Final in Luxembourg!

The Dutch Minister of Justice and Security is about to turn the entire volunteer fire brigade upside down. Not because it is good, but because it is assumed that it has to be done under EU law. This is tragic and unnecessary: there are strong legal arguments to defend the current set-up of the volunteer…

On 10 September the students of the European Law Master gathered in the Lorentzzaal for the festive opening of their programme.

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.

Data science offers great opportunities for legal research, according to Simone van der Hof and Bart Custers (eLaw). But at the same time, we have to keep an eye on the unwanted side effects of big data - such as ethnic profiling.

Eduard Fosch-Villaronga from Leiden University has been awarded a Starting Grant by the European Research Council (ERC). This grant of 1.5m euros enables talented early-career scholars to start their own pioneer project, lead a research team, and implement their best ideas at the frontiers of their…