On Tuesday 24 September the Marengo trial, also known as the trail against the so-called Mocro Maffia, continued behind closed doors after the fatal shooting of barrister Derk Wiersum. The main suspect is Ridouan Taghi. He is believed to be residing abroad along with several accomplices.

With our research and teaching, we help make the world a better place. We join in the academic and public debate, and seek answers to economic and social issues – not just at the local and regional level but at the global one too.

High-quality education, a broad choice of bachelor’s programmes and personal support in a student city. And that’s just for starters. Leiden University offers you the ideal basis for enjoying the time of your life and a world-class career.

This article provides an in‐depth assessment of lone actor terrorists’ attack planning and preparation.

In theory, states can gain security by acquiring internal arms or external allies. Yet the empirical literature offers mixed findings: some studies find arms and allies to be substitutes, while others find them to be complements. Political scientists Matthew Digiuseppe (Leiden University) and Paul Poast…

The Executive Board has decided to appoint Dr. Bibi van den Berg as Professor of Cybersecurity Governance within the Institute of Security and Global Affairs, starting on 1 September 2017.

On 1 March 2023, the Dutch Safety Board (Onderzoeksraad Voor De Veiligheid, OVV) published its report on the protection provided by the Dutch security services and lessons learned from three cases. The OVV was highly critical of the use of key witnesses and the protection offered to them. Jan Crijns,…

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…

This is an Erasmus+ International Credit Mobility project of Leiden Law School with the University of Dar es Salaam.

This is an Erasmus+ International Credit Mobility project of Leiden Law School with the University of Rwanda.

This is an Erasmus+ International Credit Mobility project of Leiden Law School with three universities in Kenya.

This is an Erasmus+ International Credit Mobility project of Leiden Law School with the University of Tirana.

Online data breaches are recurrent and damaging cyber incidents fors organizations worldwide. This study examines how organizations can effectively mitigate reputational damages in the aftermath of data breaches by hacking, through situational crisis communication strategies.

Anne-Laura van Harmelen has received a Vidi grant from the Dutch Research Council (NWO). This talent programme will enable Van Harmelen to research the social and neurobiological mechanisms of resilience in young people with childhood trauma.

By chance, computer scientist Hans-Dieter Hiep (Leiden Institute of Advanced Computer Science and Centrum Wiskunde & Informatica) discovered a ‘gaping hole’ in a widely used method for evaluating software security. Hiep patched the hole, causing quite a stir in his field. 'It’s not pleasant when a PhD…

Twenty three students who obtained excellent results in the minor Intelligence Studies received the annual Kluitersprijs.

The sixth specialisation of the Master Crisis and Security Management (CSM) will start in September 2023: Governance of Violence. Coordinator of this track is Professor Marieke Liem. She talks about the how and why of this new track and the importance of research in and knowledge of the nature and scope…

Within the broader scope of the interdisciplinary programme 'Social Resilience and Security', we seek to provide a broad and deep understanding of the dimensions and etiology of transgressive behaviours, the effects of interventions, and resilience against such behaviours.

From 25 until 28 June 2017, Peter Rodrigues participated in an international conference on “New dynamics in the European integration process – Europe post Brexit”, in the 9th Network Europe Conference of the EuropaInstitut of the Universität Zürich hosted by the University of Edinburgh.

Study information

As part of LUGO’s focus on responsible recycling of e-waste (electronic waste) we participated in the Funky Phone Challenge.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Governance and Global Affairs with Fukushima University.

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Humanities with Anton de Kom University in Suriname.

Psychology Lab on Wheels makes research accessible to all: with our mobile lab we literally reach people on the street. From bustling city centres to remote areas, our lab travels all over, making it easy for you to participate in our research. And with your help, we gain new insights and deepen our…

De Leidse student Noah Madretsma heeft de finale gehaald van de verkiezing voor VN-jongerenvertegenwoordiger Mensenrechten en Veiligheid. Wie is hij en waarom wil hij VN-jongerenvertegenwoordiger worden? Tijd om eens kennis te maken.

How can we ensure a more resilient and sustainable supply of Rare Earths in the EU in the future?

Law firm Ficq & Partners has pulled out of the Marengo trial in the Netherlands. It claims that the use of a crown witness entails ‘unmanageable risk’. Do the advantages of the crown witness scheme outweigh the risks? Jan Crijns takes stock in Dutch newspaper ‘Trouw’.

Joachim Koops, Professor of Security Studies and Scientific Director of Leiden University’s Institute of Security and Global Affairs (ISGA) has been awarded a ‘Jean Monnet Chair’ with a focus on ‘The European Union’s Role in Security and Global Affairs’ (EURISGA).

The core curriculum equips students with the conceptual approaches and qualitative empirical research methods necessary to analyze law in context. Specialized electives enable students to dive deeper and focus on particular areas of legal practice—from legal mobilization to regulation and compliance…

This is an Erasmus+ International Credit Mobility project of the Faculty of Humanities with three partners in Uzbekistan.

All five episodes of the first season of 'Breingeheim' are now available to listen on Spotify. The first season of the podcastseries is about the social contexts of adolescent development and how teens become resilient individuals. In every episode, a new Leiden-based behavioural scientist and an adolescent…

Research.com, a leading academic platform for researchers, has just released the 2023 Edition of Ranking of Best Scientists in the field of Law. Carsten Stahn Professor of International Criminal Law & Global Justice at the Grotius Centre for International Legal Studies in Leiden has ranked #340 in the…

This article illustrates how the term 'dual use' has become associated with a broader dichotomy between ‘legitimate’ and ‘illegitimate’ purposes.

PhD defence

This pioneering project will answer this question by examining migrants through the eyes of the courts between 1600 and 1900. It aims to reveal patterns of continuity and change in: 1. Treatment of migrants by criminal courts; 2. Violence and conflicts between migrants and native born.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.