Leiden criminologists have co-developed an artificial intelligence technology that tracks firearms incidents by scanning over 350 news sources.

On Thursday 19 October, the Crisis and Security Management programme welcomed back six alumni for an alumni panel.

China is actively attempting to silence critical voices about the country, including in the Netherlands. This is the main conclusion of a report on Chinese interference and intimidation within the Dutch media landscape. The media are often not well prepared for this.

In a new study published in PLOS One, Leiden archaeologist Anastasia Nikulina, together with an international team from France, Denmark, the United Kingdom and the Netherlands, challenges the long-held belief that early humans had minimal impact on their environment before the rise of farming.

In a world increasingly shaped by conflict, it becomes ever more important to create space for empathy, understanding, and informed public discourse. That is the intention the Shelter documentary and immersive installation aims to achieve as it arrives at Leiden University.

At Leiden University College, Jaap de Hoop Scheffer urged Europe to show unity and strength in a world defined by fear, power politics, and uncertainty.

Taking responsibility concerning colonial heritage and restitution is a pressing issue for countries and museums worldwide. On 23 and 24 May, a Leiden University interdisciplinary symposium will explore new perspectives as a basis for policies. Organising professors Carsten Stahn and Pieter ter Keurs…

Het zichtbaar maken van ongeschreven verhalen van inheemse culturen en volken van de Cariben. Dat doet de tentoonstelling ‘Caribbean Ties’ in de Oude UB.

Of course, Jan Melissen is proud of the publication of his new book. Even so, one painful memory lingers: because of American interference, he was forced to remove the chapter on citizen diplomacy, diversity and inclusion. ‘It did affect me.’

After nearly five years as President of the Executive Board, Annetje Ottow will be stepping down from the role as of 1 September. During her time as President, she helped shape the university’s strategic direction, strengthening its regional, European and international profile. Sustainability, and dignity…

On 23 February 2023, Leiden University organised an alumni event in Brussels, which was attended by around a hundred people. Joris Larik, representing Leiden University College (LUC) The Hague and the Europa Institute, spoke on the expert panel on interdisciplinary perspectives on ‘Europe and the new…

Bert Koenders, professor of Peace, Law and Security at the Institute of Security and Global Affairs, has been appointed chairman of the Advisory Council on International Affairs (AIV), or foreign policy.

Kai Hebel explains how the 1975 Helsinki Accords shaped European diplomacy and why their spirit remains urgently relevant in an era of renewed geopolitical in the Guardian.

Education

Ornately decorated head pieces and jewellery, images of imposing mosques and photos of local people. The 'Splendours of the Silk Roads' exhibition depicts life and different cultures along this important trade route.

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 Belgium Radio 1, Marieke Liem (professor of Violence and Interventions) gives a scientific perspective on serial killers and explains the typical Hollywood image of serial killers is not in line with reality.

In Dutch magazine Elsevier, Marieke Liem explains the issues with using the term ‘troubled person‘ in reports on homocide.

Leiden University has decided to withdraw from EUniWell as of January 2023. The importance of synergy in our international portfolio and research and teaching agendas recently led us to accept the invitation to join Una Europa, an alliance of 11 leading European research universities. We have explored…

Leiden University is announcing its approach for sensitive collaboration with external partners. This has been prompted by the ongoing, troubling situation in the Middle East and the recent advice from the Committee on Human Rights and Conflict Areas regarding current collaboration with Israeli part…

The one-day symposium ‘War in Europe: the impact of Russian aggression in Ukraine two years on’ on 23 February 2024

Four PhD candidates from Leiden University started the two-year Europaeum Scholars Programme this month. They have now completed the first week of the programme. How was it and what do they expect from this programme?

On Friday 11 March (16.00 hrs.) Minister Dijkgraaf (Education, Culture and Science) will give a speech at Leiden University entitled ‘When knowledge becomes critical’. In the speech, he will address several critical challenges in science and society. The livestream will be open to all.

Marieke Liem, professor at ISGA, discusses how the number of drug-related murders has not decreased in the last years

Leiden University’s Europe Hub invites submissions from all faculties for its annual Europe Hub master's thesis prize by 1 September 2025.

Europe is expected to experience a greater frequency of severe floods. Paul Hudson discusses the challenges of flood management The Conversation.

The ‘Discovery of the Entrepreneurial Ecosystem of EUniWell’s Consortium’s Members’ project has received a EUniWell seed grant. Sjoerd Louwaars, the representative from Leiden University, talks about the project and the first results.

During the second Arthur Docters van Leeuwen Lecture on 2 December, AIVD Director Erik Akerboom underlined how the changing threat landscape demands reflective leadership, transparency where possible and close cooperation to protect the democratic legal order.

This week, Leiden University bade farewell to Henri Lenferink, who is retiring after 20 years as mayor of Leiden.

Governments and public sector organisations consider evidence-based or evidence-informed policymaking as one of the pillars of good governance. That is to say: policies that are informed by scientific knowledge, expertise and evidence. In the research programme 'Power of Evidence', Valérie Pattyn and…

A particular group of counter protesters have been sighted at numerous Black Lives Matter protests that were held in the United States. An extreme right movement known for its characteristic Hawaii Shirts and heavy weaponry that calls itself the Boogaloo Boys. Which is cause for concern among the American…

As of 1 November 2025, Professor Luc Sels will assume the role of President of Leiden University’s Executive Board.

Second-year MIRD students showcase their thesis research on global issues during the 2025 Thesis Symposium, bridging theory and diplomatic practice.

Secrecy can be detrimental to a relationship, but in the intelligence world, it is actually a basis for trust. What do relationships and trust really mean in this 'hard and seemingly shadowy' world? PhD candidate Pepijn Tuinier investigated it. The finding: social relations play a much more important…

At the start of his PhD, intelligence analyst William Lippert didn’t yet know what to expect. Little had been written on the subject. Three years later, he is sure: conventional arms control agreements promote peace.

On 10 December, the Intelligence and Security Research Group of ISGA had the honour of hosting Vice Admiral Peter Reesink for the inaugural Arthur Docters van Leeuwen Lecture.

From scanners in lecture halls to systems for working from home: the discussion about new technology is being held on various fronts. That is why the University wants to make more use of its in-house experts. At the Technology and Trust symposium at Leiden University on 2 February, researchers from…

Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

Are all murderers calculating psychopaths with an obscene predilection for bloody chainsaws? Yes, if Hollywood is to be believed, but in the real world they are generally everyday people with problematic backgrounds. Professor of Violence and Interventions Marieke Liem therefore calls for the demythologisation…