Preventing terrorism before it happens seems like an idea no one would disagree to. But is it possible? How do counter-radicalisation policies look like? And are there dangers of unintended consequences? Francesco Ragazzi, Assistant Professor at Leiden University’s Institute of Political Science, has…

The Moot Court trophy has been awarded for the fifteenth time! This time it went to the best oralist in the spring of academic year 2024-2025.

Ronald Cramer has been awarded an ERC Advanced Grant for his proposal 'Algebraic Methods for Stronger Crypto'. He will receive 2.5 million euro for research in the upcoming five years.

What can a doodle tell us about the person who drew it? Erik Kwakkel is a Dutch book historian at Leiden University who searches for the secret meanings of doodles and scribbles in medieval manuscripts. He talks to BBC World Service about his passion for books.

As of 1 July, Marcellus Ubbink is the new Scientific Director of the Leiden Institute for Chemistry. He will succeed Hermen Overkleeft, who led the institute since 2017. Ubbink has been appointed for a period of four years.

The company QuantActions promises that through capturing and analysing the data of smartphones it will be able to “detect important indicators related to mental/neurological health”. Neuroscientist Arko Ghosh is the company’s cofounder and talks in The Guardian about tappigraphy patterns.

Archaeologist Eduardo Herrera Malatesta reflects on the unfamiliarity with the pre-Columbian past that he encountered during fieldwork in the Montecristi province in the Dominican Republic.

Jan Aarts, Leiden professor in experimental physics, has been appointed Ridder in de Orde van de Nederlandse Leeuw. He received the royal distinction from the mayor of Leiden Henri Lenferink in the Hooglandse Kerk.

In the last few weeks Armin Cuyvers was several times in the news on Brexit. He was a studio guest during the new years episode of Legal Affairs on BNR national radio and he was a studio guest in the news programme EenVandaag.

On 12 September 2025, Dr. Ben Van Rompuy participated in the conference “Playing by the Rules: the Intersection of Competition Law and Sports”, organised by the University of Lausanne.

On Wednesday 21 March 2018 Jeroen Dijsselbloem, former Minister of Finance, and former President of the Euro Group and the Board of Governors of the European Stability Mechanism (ESM), gave a guest lecture at the Faculty of Governance and Global Affairs.

Professors Remco Breuker and Barend van der Meulen are ‘top of the class’ for academic year 2018-2019 according to ScienceGuide. This science magazine has just published its list of the most influential thinkers and do-ers in higher education and science, and Breuker and Van der Meulen are on it.

On June 27th, eLaw PhD candidate Mr. Daniel Dimov successfully defended his PhD thesis. This was not only a very special event for the candidate, but also for one of his supervisors, prof. dr. Jaap van den Herik, professor of computer science and law at both the Faculty of Law (at eLaw, the Centre for…

It is with great sadness that we have learned of the passing of Prof. Dr. Frans W. Saris.

On 8 December 2022, the day that Croatia was given the green light to fully join the Schengen area, the faculty of Law of the University of Zagreb organised the UNESCO Chair Conference on Schengen and external borders. Jorrit Rijpma, Professor of European Law was invited to address the legal and political…

Front-of-pack nutrition labelling, origin labelling, regulation of voluntary green claims made by food business operators: the EU is currently looking into various reforms of the legal framework for food information to consumers. The goal: healthier and more sustainable diets.

Joris Voorhoeve, Leiden University’s professor of International Organizations and former Defence Minister, was invited to speak about restoring peace in Europe after the wars in Ukraine and Georgia at a joint meeting of the OSCE’s Forum for Security Co-operation and the Permanent Council in Vienna,…

Ukrainian refugees are being allowed to work in the Netherlands straight away. So Why do other refugees sometimes have to wait years before they can work?

More and more countries have decided to introduce compulsory vaccination. According to various experts, compulsory vaccination, under certain conditions, could help the situation in the Netherlands.

On 6 February 2021, Ilya Kokorin presented his research at the annual symposium organised by the Texas International Law Journal (TILJ).

The Dutch research school IPA has awarded former LIACS PhD student Jurriaan Rot with the IPA Dissertation Award 2015. In his PhD thesis Rot studies coinduction, a relatively new mathematical technique that makes it possible to define and prove properties of circular and infinite data structures.

Bert Koenders, Professor Peace, Justice and Security at the Institute of Security and Global Affairs (ISGA) appeared live on the ‘BNR de Wereld’ special broadcast ‘De Grote Vredesshow’ (The Great Peace Show). The radio show was hosted live from Wijnhaven in collaboration with the Faculty Governance…

On August 29th Rob Tijdeman held his valedictory lecture in a full house Academy Building as a professor in Number Theory, entitled 'My life as a mathematician'. After his lecture he was appointed, in name of the Queen, Knight in the Order of the Dutch Lion by the maior of Leiderdorp.

From 16 to 18 June 2019, Professor Matthias Haentjens, Professor Reinout Vriesendorp, emeritus Professor Bob Wessels, and PhD candidate Shuai Guo from Leiden Law School attended the 19th International Insolvency Institute (III) Annual Conference held in Barcelona, Spain.

Thijs Porck, teacher at English Language and Culture, has won the faculty teaching prize. He was lauded for his enthousiasm, his creative ways of teaching, and his commitment to his students.

On 22 March 2016, Prof. Carsten Stahn spoke on prosecuting Human Trafficking as a Crime Against Humanity at a Conference on International Criminal Justice, hosted by the Collaborative Innovation Center of Judicial Civilization of Zhejing University in Hangzhou, China.

Leiden Biology student Thijmen Breeschoten received the annual award for being the best BSc-student in 2013 from the “Stichting Professor Dr. K. Bakker-fonds”.

Quasicrystals are crystals with ‘impossible’ five-fold symmetries, which nevertheless were synthesized in the lab in 1982. Paul J. Steinhardt helped figure out their structure, but he didn’t stop at that.

On 23 and 24 November scholars working on European Justice and Home Affairs, united at the European University Institute in Florence on the occassion of the 25th year jubilee of the Area of Freedom, Security and Justice. The EU policy area covering migration, asylum and criminal justice cooperation.

Surya Tjandra has been appointed by Indonesian President Joko Widodo as Deputy Agrarian and Spatial Planning Minister.

Through the Byvanck Fund, Classical Mediterranean archaeologist Tymon de Haas has received a grant of €6,350 for his research on the ecological impact of Roman expansion. He will use this grant to investigate the traces of one of the oldest and best-preserved Roman cadastres, situated in the former…

Hackers have got their hands on data from the Royal Dutch Football Association (KNVB). Lockbit, a collective of cybercriminals, is after the money. What now?

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In a new Social Europe article, Salvador Santino Regilme, Associate Professor of International Relations at Leiden University, warns that the EU must radically rethink how it funds its security—before it is too late.

On July 13, over seventy PhD students from Leiden and Delft came together at Katwijk beach for a workshop organized by the Casimir Research School: ‘So you have a degree in Science. Now what?’

The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit.

First author Scott Waitukaitis and principal investigator Martin van Hecke have made the cover of Nature Physics with their publication on a newly discovered effect. The Elastic Leidenfrost effect explains why hydrogel balls jump around on a hot plate making high pitched sounds.

Dennis Janssen has been appointed as Director of Operations for the Leiden Observatory. He succeeds Dominique de Vet who temporarily held the position. Janssen currently works as a program manager Leiden Research Support within Administration and Central Services and will start his new role on 18 No…

On Wednesday 9, December 2015, a seminar was organized to discuss perspectives on sovereign debt restructuring at Leiden Law School. The seminar took place preceding the defence of the PhD dissertation of Yanying Li: “Inter-creditor Equity in Sovereign Debt Restructuring Towards the Establishment of…

How can we translate more fundamental discoveries into clinical solutions for patients? From that question, the Oncode Accelerator programme emerged. Professor of Molecular Physiology Mario van der Stelt has been one of the driving forces behind it since its inception. In an interview on the website…

On 4 March 2024, the Local Public Sector Alliance (LPSA) held a meeting of its Working Group on Local Democracy and Inclusive Governance, in which theoretical ideas and experiences about local governance and decentralisation were discussed. Esteban Szmulewicz, PhD candidate at the Department of Constitutional…

Since reintegration officer Bart Reedijk started work in Dordrecht three years ago, ex-convicts in that municipality have reoffended a lot less often. There is much interest in Reedijk's method throughout the Netherlands, but experts have reservations.

An impact factor of 3.2 in the Web of Science journal index. And in the first 10% of Elsevier's Scopus index. The International Journal of Multimedia Information Retrieval (IJMIR), founded at the Leiden Institute of Advanced Computer Science (LIACS), has become one of the most important multimedia j…

On December 4th an agreement was signed between the Leiden Institute of Advanced Computer Science (LIACS) and the Netherlands Forensic Institute (NFI). Cor Veenman (NFI) will perform research in the field of Forensic Big Data Science at LIACS.

The aviation sector is now fully aware of the major impact of the corona crisis. Airline companies are appealing to governments for help.

Exactly 138 years ago, Albert Einstein came into this world to forever change our understanding of it. The Leiden physics institute, where he frequently worked, organised a symposium in honor of his birthday.

The newly established Luxembourg Centre for European Law held its inaugural conference on 10-11 October 2025, exploring the theme of “European Union law and values in a changing world”. Martijn was invited to speak about the relationship between European values and democracy.

Now that the new Dutch government's plans are set out on paper, the chess game begins for cabinet formation leader Richard van Zwol. He has to make the next move and put together the ministerial team. But how do you know if you’ve made the right move with the right chess piece? And who is a suitable…

Recently, Willem van Boom attended the Annual Conference of the World Tort Law Society (WTLS), which was held at Wake Forest Law School (NC, USA; Nov. 15-18, 2017).

We talk to Justin, who was diagnosed with Bipolar Disorder type 1 over 14 years ago. Justin is very candid and talks about his first manic episode at the age of 28, and how he learned to live a stable life. Justin is doing well, and he owes this in particular to his own perseverance. What do you experience…