Naar aanleiding van de aanhoudende oorlog tussen Rusland en Oekraïne willen verschillende Europese landen een inreisverbod invoeren tegen Russische staatsburgers. Maar mogen zij dit zomaar doen?

Promotor: R. Cramer

On 19 June, Jorrit Rijpma spoke at the international conference on the Constitutional Foundations of EU Migration law at Konstanz University.

Firearms and violence in Europe–A systematic review by Katharina Krüsselmann, Pauline Aarten, Marieke Liem

This paper examines cyber intelligence in the context of national and international security.

In 2021, the National Cyber Security Centre (NCSC) asked Leiden University to conduct a rapid review of best practices and possibilities for follow-up research on the integration of behavioral sciences in security by design methodologies and projects. This academic field is called security by behavioral…

In the Bachelor’s in Security Studies you study 21st century security challenges and learn to devise strategic solutions to a complex world.

In het asielplan van vorige week kondigde het kabinet aan meer in te zetten op vertrek van ’Dublin-claimanten’. Daarbij stelt het kabinet z’n hoop op een hernieuwd EU-plan.

The present volume focuses on the political perceptions of the Hajj, its global religious appeal to Muslims, and the European struggle for influence and supremacy in the Muslim world in the age of pre-colonial and colonial empires.

On 25 October 2017, Ledi Bianku, judge at the European Court of Human Rights, gave a guest lecture entitled “The ECHR and asylum”. Ledi Bianku is Judge at the European Court of Human Rights since 1 February 2008. He has held the position of Vice-President of Section I of the Court from January 2016…

Cyber security is one of the critical challenges in our inter-connected world. Organizations are being constantly targeted by adversaries. Various critical systems become exposed on the Internet. Users can find that their data has been stolen from a company that they were not even aware of.

The 9th Network Europe Conference in Edinburgh was held at June 2017 in Edinburgh and organized by the Europa Institut Zurich. The contributions of the conference are now published.

On this page you will find all information about the Bachelor of Security Studies that you need as a first-year student.

Subproject of

Jorrit Rijpma was invited to teach at a number of summer schools this year. He lectured at the CLEER summer school on External Relations, the ICPMD summer school on migration and asylum and the Odysseus summer school.

To make digital communication more secure, we need to tighten up the legal frameworks and identify the biggest cyber threats.

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.

Marieke Liem, professor at ISGA, discusses how the number of drug-related murders has not decreased in the last years

Het asielbeleid blijft een hoofdpijndossier voor het kabinet. Een akkoord zou bereikt zijn waarin iedere partij een kleine concessie zou doen. De VVD gaat uiteindelijk toch niet akkoord met deze nieuwe asielwet die gemeentes kan dwingen om asielzoekers op te vangen. De VVD fractie heeft moeite met ‘dwang’…

Women in International Security -Netherlands (WIIS-NL) is an affiliate of WIIS Global. WIIS-NL Members include: professionals, civil servants, academics, NGOs, employees of international bodies and organizations, embassy staff, politicians, students, and interested members of the general public. The…

Europe's open borders are under pressure: Europe has an increasing number of Member States with governments calling for tighter border controls. Several political parties in the Netherlands are also calling for stricter border controls, among other things, to reduce the number of asylum seekers. Yet,…

To what extent are there differences between countries in and outside the European Union and the Schengen area in the level of crimmigration, the merger between migration control and crime control, and to what extent can these differences be explained by the way in which state and non-state actors in…

The Leiden University Europe Hub approaches Europe from a broad and inclusive perspective.

On June 9-10 2016 Dr. E. Devroe of the Institute of Security and Global Affairs (ISGA) was invited as a key-note speaker on ‘Intelligence Led policing and community oriented policing’ at the annual meeting of the ‘Organization for Security and Co-operation in Europe’ (OSCE), Transnational Threats Department,…

Lecture, Global Questions Seminar

Language learners in higher education increasingly conduct out-of-class self-directed learning facilitated by mobile technology. This project aims to explore how university students use mobile technology for their self-directed language learning and investigate factors that influence their self-directed…

The steady decline in lethal gun violence in the EU came to halt in 2012 and some countries, such as Sweden, have even noticed an increase since then. An arms race among drug criminals and an increase in the availability of illegal firearms could lead to more criminal and gun violence. This is one of…

Political scientists Huib Pellikaan and Niels van Willigen (Leiden University) use and elaborate on the theoretical insights from game theory in order to understand nuclear security in changing environment. Now that the relations between the US and Russia have deteriorated and smaller nuclear states…

In the track Intelligence and National Security you will be introduced to intelligence and security services in their political, societal, and bureaucratic contexts. The track will give you a thorough understanding of the modus operandi of these agencies, their interaction with the surrounding world,…

The executive master’s programme in Cyber Security of Leiden University takes a multidisciplinary approach that helps you develop effective and sustainable solutions for cyber risks and threats.

In the Surveillance and Security Threat Monitor 2022-2023, the research project thematically examined threat developments.

The place of European states and institutions in world politics is the core focus of this pillar. Research on this theme concerns European actors’ ability to promote peace, security and justice in their neighbourhood and to shape the future of global governance by translating its economic size into…

The research group Cyber Security Governance will provide cutting-edge academic research in the domain of cyber, where modern technology interacts with traditional concepts such as governance, sovereignty, law-enforcement, international relations and conflict.

As part Leiden University's interdisciplinary programme Social Resilience and Security, dr. Marieke Liem has been appointed Professor Security and Interventions effective 1 January 2020.

On 29 June May 2022 Yujing Tan successfully defended a doctoral thesis and graduated.

In the master’s programme in Archaeology, you can follow courses on the archaeology of Europe, deepening your understanding of the continent’s long history.

This is special issue of the journal Language & Communication. The papers of this issue delve into the multifaceted realm of (non)belonging.

As a student in Security Studies you are a socially engaged critical thinker eager to study real-life security cases in an academic setting. You focus not just on the broad context of these issues but also on the role of government, institutions and media. Want to know more? Sign up for one of our Open…

The Labour Law and Social Security department provides both bachelor’s level and master’s level teaching.

The Hague is the international city of peace, justice and security – making it the logical place for the Institute of Security and Global Affairs (ISGA) to reach partners from ministries, governments and NGOs with research into issues relating to security.

Leiden’s Institute for History has an exceptionally strong expertise in premodern European history in its global context, with specialists whose interests cover virtually the whole continent. We have a strong track record in leading larger research teams and work together with colleagues across Europe…

Proceedings of the European Science Foundation Workshop at Tautavel (France), 1993

September 2017 will see the start of the new English-language bachelor's programme in Security Studies in The Hague, developed by the Institute of Security and Global Affairs (ISGA) at Leiden University. The programme meets the growing need for academics with a broad training in the field of securit…

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…

A three-volume standard work on galls in Europe. Author Johannes C. (Hans) Roskam is associate professor emeritus in Evolutionary Biology and currently guest at Leiden University.

The first book ever on information-theoretically secure multiparty computation