The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, high-temperature superconductors, and quantum critical electron matter.

In design optimization problems, engineers typically handcraft design representations based on personal expertise, which leaves a fingerprint of the user experience in the optimization data. Thus, learning this notion of experience as transferrable design features has potential to improve the performance…

Research conducted by the Department of Child Law and Health Law at Leiden University concerns the legal position of the child at both the national and international level.

Promotor: Prof.dr. G.J. Kroes

What is the iconography of propaganda specifically as it relates to the historical development of political ideologies in modern Egypt and how was/is this propaganda disseminated among creative fields such as cinema, art, monuments, architecture, and literature?

In this book Adam Fairclough chronicles the odyssey of black teachers in the South from emancipation in 1865 to integration one hundred years later.

The master’s in Philosophy is a one-year, English-taught programme. The programme offers five specialisations:

Leiden University was founded in 1575 and is one of Europe’s leading international research universities. It has seven faculties in the arts, humanities and sciences, spread over locations in Leiden and The Hague. The University has over 6,700 staff members and 29,520 students. The motto of the University…

On 24 June, Olga Ceran and Vasiliki Kosta, together with Peter Maassen from the University of Oslo, presented the Academic Freedom Monitor 2024 to the European Parliament’s Committee on Culture and Education (CULT).

Four students who completed the Bachelor's in Security Studies share their experiences. What did they learn? Where did they end up after graduating? And do they still use the skills they acquired during their studies?

During the colloquium ‘Minorities and the Criminal Justice System’, Jasmina Mačkić (lecturer at the Europa Institute) presented some of the research results from her PhD thesis ‘Proving Discriminatory Violence at the European Court of Human Rights’.

This Justice for Children Call to Action offers a new starting point to place children at the heart of an emerging global movement for justice. It strives to ensure that, in collective efforts to achieve the United Nations Sustainable Development Goals, no child is left behind.

Security and safety challenges are at the top of the list of the most pressing issues of contemporary society.

Dr Olga Ceran has been selected as a 2025/26 Mellon/SAR Academic Freedom Fellow. As one of 11 fellows in this year’s cohort, she will work on a project titled ‘The Linguistic Dimension of Academic Freedom: A Human Rights Analysis of Higher
Education in Europe’.

During her work for the European Union, Sophie Vériter witnessed how young people in countries like Ukraine and Moldova were exposed to Russian propaganda. After mapping out the EU’s disinformation policy, the PhD candidate now advocates for a revised approach.

Experts verwachten een aanpassing in de transferregels, waardoor voetballers meer vrijheid krijgen om een club te verlaten. Een uitspraak in de Diarra-zaak door het Europees Hof van Justitie, wordt binnenkort verwacht en zou tot deze herziening kunnen leiden. Stefan Vandenbogaert, hoogleraar europeesrecht,…

Organised in collaboration with the Bosnia and Herzegovina State Ministry of Justice, UNICEF’s Europe and Central Asia Regional Office and UNICEF’s Bosnia and Herzegovina Country Office, the conference took place from 25-27 February 2020, in Sarajevo (Bosnia and Herzegovina).

As of 1 May 2025 Dr. Vasiliki Kosta has been appointed member of the standing Committee for Freedom of Scientific Practice (Commissie voor Vrijheid van Wetenschapsbeoefening - CVW) of the Royal Netherlands Academy of Arts and Sciences (KNAW).

On 12 October 2023, Kosta delivered a keynote speech on academic freedom at the 30th anniversay conference of the (European) Education Law and Policy Association. The conference was entitled ‘Shaping Education Law for the Future’ and took place at Lisbon University, faculty of law (Universidade de Lisboa,…

Access to justice is essential for children to be able to exercise and claim their human rights. On 30 April 2019, Chrisje Sandelowsky represented Leiden University at a closed roundtable in Geneva to support this cause.

On the initiative of Leiden Law School’s Art Committee, the festive opening of the photo exhibition of the Leiden Amateur Photographic Society (LAFV) took place on Friday 20 May 2022 in the C corridor of the Kamerlingh Onnes Building.

Hoogleraar Radicalisation Studies Tahir Abbas wil mensen er bewust van maken dat radicalisering voortkomt uit hoe wij als mensen samenleven

On 16 May 2023, Jan Aart Scholte presented research on the Regional Internet Registries to the annual conference of GIG-ARTS in Padua.

Matthew Hoye argues for a regulatory analytical perspective to look at the sanctioning of Afghanistan.

In this article, Tom Buitelaar proposes a systematic framework for analyzing the impact of individual characteristics of peacekeeping leaders on the behaviour of field-level personnel in UN peacekeeping operations.

The Institute of Security and Global Affairs (ISGA) is a scientific institute that specialises in security issues.

This article examines how the threat of terrorism has been addressed at the policy level through an analysis of a specific case in Mali.

This article by Malte Reimann and Antonio Cerella explores how politics and medicine have become deeply intertwined, using the thought of Roberto Esposito to reimagine this relationship through the lens of an affirmative biopolitics.

The book reinterprets the role of the UN during the Congo crisis from 1960 to 1964, presenting a multidimensional view of the organisation.

Leiden University is established in two cities: Leiden and The Hague.

Tom Buitelaar is an Assistant Professor in the War, Peace & Justice program of the Institute of Security and Global Affairs. This paper suggests a number of important avenues for states, the UN, and the ICC to improve the likelihood that the ICC receives assistance from UN peace operations.

Hoye proposes that concerns about virtues of the sovereign are essential for understanding Hobbes's both his political thinking and his political critique.

The project explores the impact of the clash between defenders of a rules-based order and international law on global governance and the future of legal systems.

This paper series is the result of two rounds of PhD workshops organized by the editors at the TMC Asser Institute and Leiden University in 2024 on ‘The legal implications of the EU’s geopolitical awakening’, with the generous financial assistance of the Municipality of The Hague.

On the 15th of March, the radio program “The World of BNR Nieuwsradio” was live broadcasted from the Spanish Steps at the Faculty of Governance and Global Affairs in The Hague. Jaap de Hoop Scheffer, associated with the Institute of Security and Global Affairs, was one of the radio show’s guests. Following…

On 9 February 2026 Leiden University celebrated its 451st anniversary.

This collection includes six short policy-focused contributions exploring how legislation and policy on counter cyber terrorism unfold at the national level in the United States, the United Kingdom, China, Russia, France, and at the regional level of the European Union.

The Institute of Security and Global Affairs (ISGA) of Leiden University contributed to the design and teaching of modules of this year’s edition of the Ministry of Defence’s ‘International Military Cooperation Course Africa’.

At the annual research day (‘toogdag’) of the research programme Effective Protection of Fundamental Rights in a Pluralist World (EPFR), researchers reflected on the growing threats scholars face due to political repression, conflict or displacement, and how to protect them.

The saga surrounding Dutch football club Vitesse continues since the presiding justice in the appeals case appears to have a supporter’s card. Arie-Jan Kwak, assistant professor, spoke to ‘NRC’ newspaper: ‘The question’s not whether the justice was in fact impartial or not.’

On 22–24 October 2025, Leiden University welcomed scholars, policymakers and higher education leaders for the Una Europa Conference on Academic Freedom. Organised by the AFITE project team and supported by Una Europa Seed Funding 2024, the three-day programme examined current pressures on academic freedom…

On 9 June 2023, the workshop on ‘Academic Freedom and its Philosophical Underpinnings in EU law’ took place at the Academy Building, Leiden. It was organized in the framework of the Vidi research project The EU fundamental right to ‘freedom of the art and sciences': exploring the limits on the commercialisation…

Nadia Bouras will give the Annie Romein-Verschoor Lecture on 6 March. She will call for academic freedom for everyone.