Have you been subjected to concerning or threatening behaviour? Are you worried that a fellow student might pose a danger to others? Or do you have concerns about abusive behaviour in the home? If so, you can turn to the Advisory Team for Concerning or Threatening Behaviour.

This page provides information on what to do if you have been subjected to unacceptable behaviour.

The chance that it will do so is about zero, but Russia is legally obliged to investigate violations of law during the war in Ukraine. States that enter into an armed conflict often deny liability, but under international humanitarian law and human rights they are obliged to investigate their military…

In the academic year 2021-2022 the Social Resilience and Security interdisciplinary programme will offer two courses for interested students who are entering the third year of their Bachelor's degree. You can sign up for these courses in your elective (minor) space. The courses are available to students…

Maak kennis met digitale veiligheid in de podcast over de BSc Cybersecurity & Cybercrime. Experts bespreken actuele thema’s zoals ransomware en online fraude.

Wat weten we over de kinderen die achterblijven na (ex-)partnerdoding? Regisseur Sara Kolster en hoogleraar Marieke Liem sloegen de handen ineen om deze groep slachtoffers in beeld te brengen: met de indrukwekkende documentaire ‘Blauwdruk’ en nieuwe cijfers uit de Femicide Monitor.

In the academic year 2022-2023 the Social Resilience and Security interdisciplinary programme will offer a new minor for students who are interested in studying interpersonal violence and who are entering the third year of their Bachelor's degree. The announcement went down well with students: the available…

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.

Each year, around forty women in the Netherlands lose their lives, most often at the hands of a (former) partner or family member. Judges, lawyers and survivors now turn directly to Professor Marieke Liem for expertise. For her, this is telling: ‘The time has come for greater knowledge and a coordinated…

From street harassment to coercive control: gender-based violence has many faces. University Lecturer Mischa Dekker has studied street harassment in the Netherlands and France, and supports institutions and organisations in embedding structural change.

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…

Did you know that research and education in the field of digital innovation are key pillars of the Faculty of Governance and Global Affairs? Over the next seven days, we are organising Cyberweek on our social media channels to showcase what we have to offer.

Hopefully it won’t be necessary but should need to access healthcare during your studies, you can find all the necessary contact information here. Make sure you also have adequate health insurance. This is a legal requirement in the Netherlands. We also highly recommend that you take out liability i…

During your studies you will probably stay in rented accommodation. But how can you find suitable accommodation? And what should you do if you have housing problems or issues with your landlord? Find out where you can turn for advice. And learn about the assistance available in DUWO international student…

With the introduction of the House of Cyber the Dutch government seeks to address a long standing concern among politicians, policymakers, and cybersecurity experts: the fragmentation of the Dutch cybersecurity governance landscape. A proposed solution is not only timely, but very understandable.

Sexual harassment was the theme of the recent annual symposium of student ambassadors to the Leiden-Bollenstreek police in collaboration with the police and the municipality. An extremely important issue to students − if the 100 places being claimed as soon as the symposium was announced was anything…

In the academic year 2022-2023 the Social Resilience and Security interdisciplinary programme will offer a new minor for students who are interested in studying interpersonal violence and who are entering the third year of their Bachelor's degree. You can register for this minor (from 2 May) in your…

On 14 July, the University Council discussed the draft version of the new ‘security framework’ with the Executive Board. This framework should make Leiden University’s security policy more transparent.

Rutger Leukfeldt has been appointed endowed Professor of Governing Cybercrime at the faculties of Governance and Global Affairs (FGGA) and Leiden Law School. Leukfeldt: 'It’s great that the two faculties are joining forces at a time when we’re faced with enormous challenges in the field of cybercrim…

Leiden criminologists have co-developed an artificial intelligence technology that tracks firearms incidents by scanning over 350 news sources.

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

Portraits that gaze at you and have moving stories to tell: HEAR ME NOW says what usually remains unsaid.

What does it mean to be in a Dutch prison? What is true about the prejudices about being in jail? Criminologist Marieke Liem has released a podcast on Dutch national broadcaster NPO Radio 1: Hotel met tralies.

Why do people commit violence? A question that may not occupy many minds, but one that Don Weenink has been researching for many years. Since 1 March, the sociologist has held the title of professor of Violence and Policing.

The interdisciplinary, English-taught minor ‘Violence Studies’ looks at violence from very diverse scientific perspectives. What are the benefits from this approach? Students and lecturers evaluate: ‘This minor’s a goldmine’.

Jeanine de Roy van Zuijdewijn, PhD candidate at ISGA, explained the dilemma countries face in the aftermath of terror attacks.

We have all been deeply affected by the events that took place in Rotterdam on Thursday evening. Our colleagues at Erasmus Medical Center and Erasmus University have lost a valued colleague and have been involved in a very serious incident, which will undoubtedly leave deep scars. The witnesses to this…

Cybersecurity doesn’t start with your first job – it starts with your first phone. According to Sofian Fesenko, a student of Crisis and Security Management (CSM), digital resilience needs to be built from a young age. That’s why he developed an educational card game to raise children’s awareness of…

From memorials to the armed forces to memory stones for individual victims. It was only later that the Holocaust took a central role in Western remembrance culture, Cleveringa Professor Frank van Vree notes. ‘Nationalists and human rights activists both invoke the experience of the Holocaust.’

It is one of the most talked-about subjects right now: how do we eradicate sexual harassment and violence? Alumnus Femke Eisma is the spokesperson for Mariëtte Hamer, the government commissioner tasked with tackling this persistent social problem. Eisma studied the Dutch language at Leiden. How is her…

Academics are increasingly facing threats, harassment and hate speech following public appearances. The Dutch universities – united in the Association of Universities in the Netherlands (VSNU) – is now adopting a number of national measures, from a zero-tolerance policty to psychosocial help for vic…

The Russian invasion of Ukraine has also had dramatic consequences for Ukrainian students at Leiden University. Besides their intense concern about the fate of family and friends, they also face major financial problems. This also applies to Russian students who can no longer access their bank accounts.…

ICT, Security

This is a difficult time. Above all, for all those directly involved in this horrible case – unacceptable behaviour by a professor and his removal from the University – the case we went public about on 18 October and that has been reported in the media. This is painful and tough for the complainants…

Turkish and Syrian students met Rector Magnificus Hester Bijl to discuss how the university can support students who have been affected by the earthquake.

Gert Oostindie, Emeritus Professor of Colonial and Postcolonial History, is this year’s Cleveringa Professor at Leiden University. He was appointed by the University on 4 October. In his inaugural lecture on 24 November, entitled Courage and Disregard, he will talk about (academic) freedom in relation…

Lawyer and human rights activist Lilian Gonçalves-Ho Kang You is the new Cleveringa professor.

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…

Vanaf september 2025 biedt de Faculteit Governance and Global Affairs de bacheloropleiding Cybersecurity & Cybercrime aan. Deze unieke Nederlandstalige opleiding leidt studenten op tot veelzijdige cyberexperts. ‘Er is veel vraag naar specialisten op het gebied van cybersecurity en cybercrime’.

The Social Resilience & Security interdisciplinary programme broadens its scope by embedding two research projects lead by Dr. Joanne Mouthaan. The projects adress suicide prevention skills and mental health of Ukraine refugees. Both projects will be integrated in the programme with the aim to improve…

Huiselijk geweld is een ingrijpend probleem in Nederland, met jaarlijkse fatale gevolgen. De impact gaat verder dan alleen de slachtoffers zelf en raakt ook nabestaanden en de samenleving als geheel. Tot nu toe/Momenteel ontbreekt het echter aan een gestructureerde manier om fatale gevallen systematisch…

Across Latin America, stories of violence against women reveal how deeply gender, power en inequality are intertwined. Researcher Martín Hernán Di Marco tells how storytelling, activism and research together challenge the global cycle of violence against women and girls.

Young people being deployed to carry out explosive attacks: how do they come into view, and what motivates them? The podcast 'Action/Reaction: From Attack to Approach' by the research project Close Protection and Surveillance and researcher Sheila Adjiembaks takes a closer look at why and how young…

‘A Muslim and a Jew in the house of God.’ This is how historian Nadia Bouras introduced her recent conversation with colleague Sara Polak in Leiden’s Hooglandse Kerk. They discussed the rising tensions since the outbreak of the Israel-Hamas war. ‘Dare to ask each other questions.’

Artificial intelligence (AI) is often portrayed as a technological saviour for addressing climate change. But there are risks associated with its use, observes Barrie Sander.