A higher level of legal firearm availability does not lead to more violent deaths in Europe but does lead to more female deaths.

Cybercriminality and cybersecurity are hot topics, in the academic world as well as elsewhere. But there is room for improvement in this research, says Bibi van den Berg, Professor of Cybersecurity Governance at Leiden University. Inaugural lecture 8 June.

Dutch citizens are not opposed to additional earnings and financial gifts for people on welfare, but believe it is important that there should also be an obligation to look for a job. This was the outcome of a research project on the opinions of Dutch people regarding the implementation of welfare p…

When do we say violence was used in an incident? The answer may seem obvious at first. But interim results from a study by Jolien van Breen show that Dutch people are labelling events in increasingly broad contexts as violent.

How do you manage a crisis? This is what Professor of Crisis Governance Sanneke Kuipers will address in her inaugural lecture.

Papers in honour of Professor Annelou van Gijn

On 5 May, we celebrate the liberation of the Netherlands in 1945 and the fact that we have been able to live in freedom ever since. But what does freedom mean, and how does it relate to our safety? Various FGGA experts draw connections with their own fields of expertise.

On 20-21 June, the Society for Terrorism Research (STR) held its annual conference in Oslo. The Center for Research on Extremism (C-REX) of the University of Oslo led by Professor dr. Tore Bjørgo hosted one of the main academic conferences in the field of terrorism studies. The central theme was the…

Dear friends of the NVIC,

Lecture, LUCIR lecture + Q&A

Teacher Dr. Elke Devroe introduces group role-play on actual themes of governance of crime and social disorder. In the final session of the course, the classroom was transformed into a theatric scene where students applied their insight into the contemporary debates on various issues in governance…

Juan Masullo J., Assistant Professor at Leiden University’s Institute of Political Science, has been named a 2025 Harry Frank Guggenheim Distinguished Scholar. His research with Nicholas Barnes on public security policy preferences in Rio de Janeiro's favelas has been recognized for its innovative approach…

The interdisciplinary Kiem project ‘Violence as a Population Health Problem’ has resulted in a plan to apply for a large, yet-to-be-decided research grant. The so-called pressure cooker session at the heart of the project proved very effective.

Turbulent times in Italy: Deputy prime minister Matteo Salvini wants new elections so that he can become prime minister himself. He is campaigning on social media, including photos of himself posing in his swimming trunks.

On Friday 23 February Jorrit Rijpma spoke at the Roundtable “Whispering in the Prince’s Ear?” at the University of Amsterdam.

On 19 and 20 February 2018, Melanie Fink and Jorrit Rijpma were invited to discuss questions of fundamental rights accountability at the Frontex headquarters in Warsaw.

Nature's role in buffering stress response

The Advisory Council on International Affairs (AIV) has issued an opinion on possibilities for reform within the European Union (EU) in the area of Common Foreign and Security Policy (CFSP), the EU budget, and protecting the rule of law.

Vertegenwoordigers van negentien landen hebben in Davos de eerste handtekeningen gezet onder Donald Trumps nieuwe ‘Board of Peace’, maar deskundigen, waaronder emeritus hoogleraar internationaal publiekrecht, Nico Schrijver, waarschuwen voor de NOS, dat het initiatief de VN kan ondermijnen en te veel…

Starting 1 February 2023, Daniëlla Dam-de Jong has been appointed as professor to the new Chair International Sustainable Development Law at the Grotius Centre for International Legal Studies at Leiden University. Her expertise lies in the field of sustainable development, with an emphasis on natural…

Early November, Professor of European Law Jorrit Rijpma contributed to Europol's Virtual Foresight Exercise to address the future impact on serious and organised crime in the EU. Human trafficking, smuggling and other forms of organised cross border crime fall within the competence of Europol.

Starting this semester, Urban Studies students will be able to work on the urban development of the municipality of The Hague. A LUF incentive grant will enable them to put their knowledge into practice even more effectively. At the same time, a study will be started on the optimal use of urban spac…

Democratic citizenship refers to the capacity and willingness of citizens to actively influence the functioning of state institutions. While considered a vital correlate of democratization and the rule of law, its largely western-oriented literature rarely studies the forms of democratic citizenship…

The group of Dr. Roxanne Kieltyka designs and synthesizes molecules that self-assemble into polymeric materials using specific non-covalent interactions. These substrates can be used for numerous applications in medicine ranging from disease detection to cell delivery depending on the (bio)molecular…

On Wednesday 27 February, a group of around 30 Leiden Law students visited the EU’s Agency for the coordination of cooperation between police authorities, the European Police Office (Europol) in the world’s legal capital: The Hague.

On 28 and 29 June researchers from across the EU came together at Leiden Law School for the first MOSE Young Researcher Workshop.

Last Friday, more than a dozen people died during the storming of Spain’s North African enclave of Melilla. A dramatic incident, but certainly not the first time that refugees and migrants have used force to try to enter Melilla.

On November 16th 2018 Jorrit Rijpma visited the European Parliament and the European Commission with students of the LDE Master on the Governance of Migration and Diversity.

On Thursday 7 March, a group of around 40 Leiden Law students visited the EU’s Agency for the coordination of cooperation between law enforcement authorities, the former European Police Office (Europol) in the world’s legal capital: The Hague.

For optimization problems, it is often unclear how to choose the most appropriate optimization algorithm. As such, rigorous benchmarking practices are critical to ensure we can gain as much insight into the strengths and weaknesses of these types of algorithms.

Marieke Liem, Professor Social Resilience and Security at Leiden University, and Katharina Krüsselmann, PhD candidate at Leiden University and Manuel Eisner mapped the flow of homicide cases with the help of a systematic review.

Natural history collections provide invaluable sources for researchers with different disciplinary backgrounds, aspiring to study the geographical distribution of flora and fauna across the globe as well as other evolutionary processes.

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

Electoral Systems and Turnout: Evidence From a Regression Discontinuity Design. In this article, published on the website SAGE research methods, authors Jaroslaw Kantorowicz and Tobias M. Hlobil discuss how a Regression Discontinuity Design can be executed.

Leiden research on psychology and archaeology will boosted by two subsidies. Both research projects focus on children.

Psychologist Lorenza Colzato is the editor-in-chief of the Journal of Cognitive Enhancement, a new interdisciplinary psychology publication. The journal will contribute to a higher understanding of research aimed at enhancing human performance and creative potential.

The transition from Middle to Upper Paleolithic is a major biological and cultural threshold in the construction of our common humanity. Technological and behavioral changes happened simultaneously to a major climatic cooling, forcing human populations to develop new strategies for the exploitation…

Today, 13 students at Leiden University have started a crowdfunding campaign to collect money for research into the possibilities of growing crops on Mars. Their research will contribute to the knowledge of our galaxy. The project is in the context of the iGEM competition.

The Leiden University Bachelor's programme in Philosophy features philosophical traditions from around the globe. Traveling through space and time, from Europe and Iran to India and China, and from Antiquity to the present day, you will learn how to challenge unquestioned patterns of thought, and how…

The aim of this workshop is to open up the discussion of textual communities in Late Antiquity and the early Middle Ages, by offering a platform for PhD students from all over the world and from various disciplines to present their own research and discuss it with others. Deadline: April 23.

TRI Leiden has developed, in cooperation with over twenty experts in insolvency from across Europe, the final draft Statement of Principles and Guidelines for Insolvency Office Holders in Europe. This project was commissioned by INSOL Europe. Following its presentation at the INSOL Europe annual conference…

'After my BA International Studies I decided to do the MA International Relations, and that proved to be a good choice,' Mats Radeck (23, Trier, Germany) says. He is in the last phase of the MA, working on his thesis on

Chiara Porro from Australia studied International Relations and Diplomacy at Leiden University and has been Australia’s Ambassador to the Holy See since August. How did she end up at the Vatican and what is it like? ‘The Pope told me his door was always open!’

The enlargement of the EU to include ten East and Central European countries went smoothly. But further expansion is meeting resistance and Poland and Hungary are now abandoning a number of democratic principles. What are the reasons? Antoaneta Dimitrova, Professor of Comparative Governance, explains…

bachelorstudent Serafine Beugelink ontwikkelt kaartspel over elementaire deeltjes en deeltjesfysica. Ze zet succescol haar eigen bedrijf op.

Who is Economic Man? Every economic paradigm presupposes an anthropology, a theory of human nature. This project explores the anthropologies presupposed and produced by ancient Greek economic texts, and the specific knowledge forms that shape these anthropologies.

The Institute of Psychology is responsible for innovative and interdisciplinary research and education within psychology and related disciplines.

The African Studies Centre Leiden’s Research Programme for 2025-2029 is called ‘African Trajectories: Past Dependencies and New Directions’. Building on its former programme, it extends the recognition of Africa’s pivotal role in world affairs. The continent’s global significance has become increasingly…

CitiObs will consolidate and apply tools and practice-based knowledge for co-creating data, knowledge and local action regarding the environmental impacts of climate change and human activity in the urban context via Citizen Observatories.