Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

Your time at Leiden is about more than just studying. Some of your best experiences will stem from being a part of our lively and diverse student community, as well as from life in the beautiful city of Leiden.

The Royal Holland Society of Sciences and Humanities (KHMW) has elected six professors from Leiden as members.

Reijer Passchier, universitair staatsrecht en hoogleraar digitalisering en de democratische rechtsstaat aan de OU, waarschuwt in HP/De Tijd hoe weinig controle we werkelijk hebben over kunstmatige intelligentie, terwijl machtige bedrijven steeds meer invloed krijgen op onze democratische samenleving…

This Research project is funded by the 7th European Community Framework Programme, with additional funds from NWO Aspasia grant, and in collaboration with University of California, Berkeley.

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members focus on the democratic role of citizens and the representative links between voters and politicians.

From 16 to 23 October 2025, the Faculty of Governance and Global Affairs (FGGA) will host the second edition of Cyber Week. Following last year’s success, we will once again shine a daily spotlight on our teaching and research in the field of cybersecurity through LinkedIn and Instagram. Today’s societal…

From 16 to 23 October 2025, the Faculty of Governance and Global Affairs (FGGA) will host the second edition of Cyber Week. Following last year’s success, we will once again shine a daily spotlight on our teaching and research in the field of cybersecurity through LinkedIn and Instagram. Today’s societal…

Beyond the immediately visible plenum, parliaments are highly complex institutions. They work through various venues in which decisions are prepared or even taken. The two main institutions in this regard are parliamentary party groups, which comprise legislators who are elected under the same party…

Antoaneta Dimitrova, Professor Comparative Governance at Leiden University, Honorata Mazepus, Assistant professor at Leiden University and Dimiter Toshkov, Associate Professor at Leiden University, together with three other authors researched which aspects of state capacity might contribute to opening…

Prior to the 2020 presidential election, historians considered the disputed 1876 contest—which pitted Republican Rutherford B. Hayes against Democrat Samuel J. Tilden—the most controversial in American history.

This article studies the perceived legitimacy of EU enforcement actions.

Stam defended his dissertation ‘Freedom of speech and the suppression of discrimination in the Netherlands: a constitutional-developmental approach’ on 12 November 2025. The doctoral research was supervised by Afshan Ellian and Bastiaan Rijpkema

The aim of this project is to study what makes an act or form of violence a specifically political reality.

‘Vrijwel elke kritische reflectie op AI en de richting waarin AI zich op dit moment ontwikkelt, ontbreekt’, zegt Reijer Passchier, hoogleraar digitalisering en de democratische rechtsstaat aan de OU en universitair docent staatsrecht in Leiden, in een opiniestuk in de Volkskrant.

Recently, Johan Christensen, Assistant Professor at the FGGA, contributed to the commentary series on technocracy and democracy in global governance that is organised by the Global Governance Centre and the Albert Hirschman Centre on Democracy.

In het radioprogramma Spraakmakers becommentarieert Reijer Passchier, universitair docent staatsrecht en hoogleraar digitalisering en de democratische rechtsstaat (OU), de stelling: 'moet er een minister van digitale zaken komen?'

Early November 2019 lecturer Michael Klos spoke about the freedom of speech on social media at the World Forum for Democracy 2019 in Strasbourg.

Political scientist Simon Otjes (Leiden University) receives a grant from The Dutch Research Council (NWO). The grant is part of the SGW Open Competition XS, which aims to stimulate innovative scientific research within the Social Sciences and Humanities domain. Otjes receives the grant for his research…

Research within the centre is broad and pluralistic, ranging from the history of political thought to contemporary analytic and continental political philosophy and critical social theory. Members of the CPP also participate in the Research Profile Area on Political Legitimacy. The Centre is the proud…

Explore the MSc Democracy and Representation at Leiden University: examine challenges facing modern democracies—populism, representation, media influence—and enhance your analytical skills.

Team History of Africa and the Americas

Discover the MSc Democracy and Representation at Leiden University: a structured and intensive programme focusing on democratic challenges like populism and polarization, with electives, research thesis, and small-group teaching.

In this article, Gerrit Dijkstra and Jos Raadschelders from the Institute of Public Administration, argue that Bosnia-Herzegovina survives so far on the basis of negative legitimacy.

The chaotic years after the Civil War are often seen as a time of uniquely American idealism—a revolutionary attempt to rebuild the nation that paved the way for the civil rights movement of the twentieth century. But Adam Fairclough rejects this prevailing view, challenging prominent historians such…

In this article, Honorata Mazepus, assistant professor at the Institute of Security and Global Affairs, and Dimiter Toshkov, associate professor at the Institute of Public Administration, discuss whether the winner–loser gap extends beyond the political domain to subjective health and well-being as…

On 14 January 2021, Joost Westerweel defended his thesis 'Lokale democratische innovatie'. The doctoral research was supervised by Prof. G. Boogaard and Prof. M.J. Cohen.

What does the interspecies interpretation of the equality principle mean for the liberal democracy, and is it possible to provide for an appropriate legal and political position for animals without defying the classic-liberal principles of the liberal democratic state?

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members study phenomena such as migration, immigration, citizenship, integration, ethnic parties, minority and caste-based politics, borders and migration,…

How can more people take ownership of technology? Underlying this question is the assumption that not enough people currently own technology. According to Reijer Passchier, Associate Professor of Constitutional and Administrative Law in Leiden, and Professor of Digitisation and the Democratic Rule of…

Breda features prominently in a Microsoft customer story about AI, but the city says it is not advertising. Reijer Passchier, Assistant Professor of Constitutional Law and Professor of Digitalisation at the OU, warns that ‘considering the democratic rule of law, local governments should not lend themselves…

The institute hosts criminal lawyers and criminologists who engage in high-quality scientific research that is also relevant for society.

Undermining can be described as behaviour and actions which (threaten to) cause harm to the democratic legal order. This is a Dutch speaking course in The Hague.

Een mogelijke overname van het Nederlandse cloudbedrijf Solvinity door het Amerikaanse Kyndryl kan ertoe leiden dat de Amerikaanse overheid toegang krijgt tot DigiD-gegevens van Nederlandse burgers. Reijer Passchier, hoogleraar digitalisering en democratische rechtsstaat, waarschuwt op BNR-nieuwsradio…

Een mogelijke overname van het Nederlandse cloudbedrijf Solvinity door het Amerikaanse Kyndryl kan ertoe leiden dat de Amerikaanse overheid toegang krijgt tot DigiD-gegevens van Nederlandse burgers. Reijer Passchier, hoogleraar digitalisering en democratische rechtsstaat, waarschuwt op BNR-nieuwsradio…

De EU stelt vereenvoudigingen voor in digitale regelgeving - zoals minder frequente cookiemeldingen - maar tegenstanders waarschuwen voor een gevaarlijke concessie aan grote Amerikaanse techbedrijven Reijer Passchier, universitair docent staatsrecht en hoogleraar digitalisering en de democratische…

Debate

This project investigates diversifying and democratizing heritage through practices of “home-making”. We propose to research ‘home-making’ as a non-binary practice of combining memories of roots and routes, dwelling in the present, and desires for the future.

On Wednesday, 14 May 2025, Catherine O'Regan will deliver the annual Van Vollenhoven Lecture

Our research group Intelligence and Security, provides a diverse range of educational opportunities that combine theoretical foundations with practical applications in intelligence and security.

Do you have to be able to say everything on Twitter and Facebook? Is Instagram morally obliged to remove photos from attacks? Should we allow the terrorist group to recruit new members on the internet?

In this minor, you will learn about the structure, working methods, and the analysis techniques used by intelligence and security agencies in the Western world.

Political scientist Tom Theuns (Leiden University) has been awarded a Veni grant from the Dutch Research Council (NWO). This means that he is recognised as a promising researcher and that he will receive support to develop his ideas further for a period of three years. Theuns will focus on the role…

Essential services risk being taken over by US Big Tech companies, affecting privacy and digital sovereignty in the Netherlands. Reijer Passchier, Assistant Professor of Constitutional Law and Professor of Digitalisation and the Democratic Rule of Law at OU, co-authored an opinion piece in ‘de Volkskrant’…

Momenteel vindt onder Trump in de VS, een snelle ontmanteling van verschillende instituties, die de democratische rechtstaat stutten, plaats. Wim Voermans, hoogleraar staatsrecht, acht de kans aanzienlijk kleiner dat dit in Nederland zal gebeuren door ons meerpartijenstelsel, het poldermodel en het…

Digitalisering raakt iedereen, maar speelt nauwelijks een rol in verkiezingsdebatten. In een opiniestuk in de Volkskrant pleit Reijer Passchier, universitair docent staatsrecht en hoogleraar digitalisering aan de OU voor politieke urgentie en visie op digitale vraagstukken.

Politicians in The Hague were in for an unpleasant surprise when the interview with CDA politician, and also current Dutch Foreign Affairs Minister, Wopke Hoekstra was published. Especially Hoekstra’s suggestion to let go of the Government’s target to reduce the amount of nitrogen by 2030 raised some…

On 17 February 2016 Armin Cuyvers was invited to speak at the Liverpool European Law Unit (LELU) in a seminar on ‘Legitimacy and participation in the EU’. In his presentation, entitled ‘National parliaments as training wheels of EU democracy?