The book addresses the question “How and why do people become involved in European homegrown jihadism?

Homicide engenders broad moral concerns in society, and its aftermath can be understood as a barometer for criminal justice policy. Of all homicides committed, however, only some lead to arrest, to prosecution and ultimately to conviction in court.

Abbas provides an in-depth analysis of the complex interplay between Zionism, Jewish identity, power dynamics, and the Israeli-Palestinian conflict.

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

On Thursday 23 May, Carlotta Rigotti, postdoctoral researcher at eLaw, gave a guest lecture on the regulation of image-based sexual abuse (IBSA) in the European Union at Kyoto University.

On 28 November 2025, Leiden University and PLNT Leiden hosted “The Knowledge Orchard” - an event aimed at starting up/ enhancing interdisciplinary cooperation between academics at Leiden University, and improving collaboration between Leiden researchers and external partners in research and educatio…

The annual homicide rate has decreased considerably since the 1990s. In their hunt for an explanation, researchers Pauline Aarten and Marieke Liem made a surprising discovery: if you divide homicides into categories, you find significant differences in the homicide rate. Publication in the European…

Lecture

Inaugural lecture

On 4 March 2016, Melanie Fink presented her PhD research on legal accountability for human rights violations occurring during Frontex-coordinated joint border control operations at a workshop for recipients of the DOC scholarship of the Austrian Academy of Sciences.

The history of the LGTBI+ collective, deeply marked by episodes of violence, repression, and discrimination, is also the history of the struggle for social change and the conquest of civil rights, advances without which contemporary Western democracies could not be explained. More recently, the implementation…

Do you have a question about studying at leiden University or student life in Leiden or in The Hague? Do you want more information about the Crisis and Security Management programme? Chat with a current student for answers to your questions!

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

Do you have a question about studying at leiden University or student life in The Hague? Do you want more information about the Crisis and Security Management programme? Chat with a current student for answers to your questions!

You can find more information on the Dutch webpage. Click on the “Nederlands” button above.

Thank you for your interest in doing PhD research at the Leiden Graduate School of Humanities. Below you will find information on how to start your PhD at Humanities in Leiden.

Welcome to your starting point for collaboration with the Leiden Learning & Innovation Centre. Whether you're part of Leiden University or an external organization, this page will direct you to the right pages and contacts, ensuring a smooth beginning to our collaboration.

The Hague Journal of Diplomacy is hosted by the Institute of Security and Global Affairs at Leiden University. Besides the journal, there are many other activities related to diplomacy.

blabal

In an increasingly complex and security-challenged society, the CSM programme, Governance of crisis, provides you with the theoretical and practical skills to understand the issues underlying security challenges and develop solutions for crisis and security management.

These syntheses allow the team to determine the extent to which schools-based interventions are effective at targeting radicalisation-related outcomes.

On 18 June 2019, Peter Kempees defended his thesis 'Hard power and the European Convention on Human Rights'. The doctoral research was supervised by Prof. R.A. Lawson and Prof. H. Duffy.

This book explains how mass killing is driven by elite politics within authoritarian regimes.

This project explores innovative strategies to counter online extremist content, focusing on integrating traditional content moderation tactics with targeted online interventions. Through research, workshops, and data-driven experiments, we aim to answer: How and when should traditional content moderation…

This research sets out to answer the following questions:

In this article, Jeanine de Roy van Zuijdewijn and Edwin Bakker provide a big picture reflection on two decades after 9/11 in Western Europe.

In an increasingly complex and security-challenged society, the CSM programme, Intelligence and National Security, provides you with the theoretical and practical skills to understand the issues underlying security challenges and develop solutions for crisis and security management.

In an increasingly complex and security-challenged society, the CSM programme, Cybersecurity Governance, provides you with the theoretical and practical skills to understand the issues underlying security challenges and develop solutions for crisis and security management.

The Academic Language Centre interpreting and translation service has extensive experience in translating to and from Dutch and English. Our services are characterised by professionalism, quality, and reliability.

With the exception of external self-funded PhD candidates, all PhD candidates must follow a training plan established at the start of the doctoral process.

Find out how to apply for Crisis and Security Management at Leiden University by following our step-by step guide.

In this book, a new generation of scholars offers fresh perspectives on the history of the Dutch slave trade. Traditionally, Dutch research has focused on business practices, often overlooking the enslaved and the complexities of illegal trade and violence.

Leiden University publishes an overview of the ancillary positions of its professors.

In this article, Thomas Maguire, Assistant Professor at the Institute of Security and Global Affairs, examines why states use intelligence to influence external audiences.

How and under what conditions Dutch primary school principals' managerial networking activities affect the performance of their school

As part of the process of safeguarding the quality of our research, our institutes are audited regularly by a committee of external experts.

Below you can read about 4 methods of PLATO.

Research combining a conceptual and practical perspective within the field of teaching and learning second languages.

This dissertation presents new cryptographic protocols, which can be divided into two families.

On February 28th, Promise Dodzi Kpoglu succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Dodzi on this great result.

Scholars passionate about the intersection of law and digital technologies can pursue a Ph.D. in our vibrant research community.

Mateo Cohen (research assistant at the Open University of Israel and PhD candidate at Leiden University’s Institute of Political Science) studied arguments articulated by diverse members of the Right-Wing elite in Israel and explains how these views lead to the rejection of a two-state solution and…

Lecture, Com(parative) Syn(tax) Series

Tackling human trafficking has been a priority on international, national and local policy agendas for some decades now. Yet a number of knowledge gaps stand in the way of how the issue is approached. Interdisciplinary research is essential if we want to expand our knowledge to benefit policy and pr…