Physical Violence refers to violence related to criminal activities, violence perpetrated in interpersonal conflict such as in the domestic sphere, and socio-political violence. It ranges from mass shootings such as Columbine and Virginia Tech, to nighttime violence, alcohol-related violence, violent…

The research group on terrorism and political violence studies the phenomena of terrorism-related and other politically motivated violence.

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

How many men and women die per year at the hands of others? What are the motives behind these killings? Are there as many homicides today as years ago? How can we explain the rise and fall of homicides over time? And: What is the influence of (early) childhood and adolescence on the likelihood to commit…

Can conspiracy constructions explain for hatred of the system? And if so, should conspiracy constructions be considered to be a risk in terms of national security?

Project TARGET aims to improve our understanding of gun violence in Europe and the relationship between gun violence and firearms trafficking.

This study focuses on violence involving juveniles in conflict with the law who are deprived of their liberty in different institutions within the framework of the (juvenile) criminal justice system (inter alia, police detention, pre-trial detention and deprivation of liberty after conviction or sen…

The aim of this project is to study what makes an act or form of violence a specifically political reality.

In this project, we seek to assess, map and understand the risk factors associated with fatal domestic violence.

On 29 September 2020, Tom van Ham defended his thesis 'Collective violence offenders and offending. The role of individual characteristics'. The doctoral research was supervised by Prof. A.A.J. Blokland, Prof. O.M.J. Adang (RUG) and Prof. Th.A.H. Doreleijers (VUMC).

On Tuesday 23 May 2017, Jasmina Mackic defended her doctoral thesis ‘Proving discriminatory violence at the European Court of Human Rights’. The supervisor of the research is Vice Dean and Professor of Public International Law Larissa van den Herik. A brief summary of her thesis is provided below.

The position of child victims, globally and in Liberia and their right to physical and psychological recovery and social reintegration covered by art. 39 CRC.

This research examines the social, political, and cultural forces that structure people’s responses towards accented speech, and further uses the accent as a focal point to theorize the interrelation between language and body.

The illegal use of hand grenades has generated a lot of public interest over the last few years but very little is known about the nature and extent of these incidents. This research project is trying to fill that gap.

French title: Communication et violences dans le Guéra et le Moyen-Chari (Tchad) de 1940 à 2010. This research investigates the relationship between the introduction of new means of communication and violence experienced by the local populations in the Moyen-Chari and the Guéra regions in Chad from…

Jasmina Mačkić, Assistant Professor of Human Rights Law at the Europa Institute, has published her book, Proving Discriminatory Violence at the European Court of Human Rights. This work is based on her doctoral dissertation, which she defended in May 2017 and which was funded by the Netherlands Organisation…

Grace Leksana defended her thesis on 26 May 2020.

Violence during war often involves upswings and downturns that have, to date, been insufficiently explained. Why does violence at a particular point in time increase in intensity and why do actors in war decrease the level of violence at other points? Duyvesteyn discusses the potential explanatory variables…

This article written by Marieke Liem & Alexander Kamprad investigates the relationship between terrorism and interpersonal violence. They conducted cross-national analyses on the effects of terrorism mortality rates on homicide rates. Results showed that terrorism appears to be robustly and positively…

How have British, Dutch, and German security services dealt with political violence and terrorism since the late 1960s; to what extent did they consider these new phenomena as a task and how have they developed activities in order to counter these security threats?

This initiative is intended to support generative research collaborations between and among scholars located in different geographical regions who wish to pursue focused, joint projects in any area of the study of religion.

The Dutch and English East India Companies were formidable organizations that were gifted with expansive powers that allowed them to conduct diplomacy, wage war and seize territorial possessions. But they did not move into an empty arena in which they were free to deploy these powers without resista…

A new paperback edition of Brian Heffernan's book Freedom and the Fifth Commandment. Catholic priests and political violence in Ireland, 1919-21 was published by Manchester University Press in September 2016.

Policy Note Insecurity in Burkina Faso – beyond conflict minerals: The complex links between artisanal gold mining and violence

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…

How did the Chinese in Indonesia respond to anti-Chinese violence and changing political conditions during the Indonesian revolution?

Why do certain incidents of serious violence end lethally whereas others do not? What role do personal characteristics of offenders and victims play and how do immediate situational factors influence outcomes?

The out of control ‘Project X’ event in Haren, hooligans who arrange to meet up to fight and beach riots at the Hoek van Holland: group violence is increasingly hitting the headlines. Are those who took part seasoned criminals? And what characteristics do group offenders have? PhD defence on 29 September…

On January 1, the research group Physical Violence and Public Order was launched. Previously part of the group Terrorism and Political Violence, the new group focuses on violence ranging from mass shootings such as Columbine and Virginia Tech, to domestic violence, alcohol-related violence, violent…

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

The first year students of Bachelor Security Studies finished their final block with the course Integrated Project 1. As part of the programme's teaching philosophy ‘Explore, Understand, Do’, students were required to combine the knowledge and understanding they’d gathered throughout their first year,…

The first year students of Bachelor Security Studies finished their final block with the course Integrated Project 1. As part of the programme's teaching philosophy ‘Explore, Understand, Do’, students were required to combine the knowledge and understanding they’d gathered throughout their first year,…

From 23-25 August the Child Abuse & Violence Congres ‘ Broken 2018’ took place. Mariëlle Bruning was one of the keynote speakers and talked about the child’s right to protection against all forms of violence and the implementation of this children’s right in domestic child protection systems.

Behavioral Sciences Mental Health Psychological Disorders - Adult Aggression in Adults Psychological Science Social Psychology Criminology & Delinquency Social Sciences Criminology and Criminal Justice Crime and Crime Prevention Criminal Behaviour and Forensic Psychology Violent Crime Law Criminology…

Marieke Liem, Associate Professor, at the Institute of Security and Global Affairs, was interviewed by RTL Nieuws on Tuesday morning 27 August about the increase in violence with illegal hand grenades in the Netherlands.

In the context of the 2021 Day of General Discussion of the UN Committee on Rights of the Child, this time dedicated to alternative care, Defence for Children in collaboration with Leiden University has contributed with a paper on the 2019 Dutch Inquiry Committee on Historical Child Abuse in Alternative…

On Tuesday 23 May 2017, Jasmina Mackic will defend her doctoral thesis ‘Proving discriminatory violence at the European Court of Human Rights’. The defence will start at 15.00 hrs, at the Academy Building of Leiden University, Rapenburg 73. The supervisor of the research is Vice Dean and Professor of…

Eliminate violence against women. That is the message of the Orange the World campaign. Leiden University is joining in this year, hence the ‘oranged’ Academy Building and Oude UB.

The European Homicide Monitor (EHM) offers a standardized framework for countries and regions to compare homicide characteristics, patterns and trends.

New research has confirmed that the Dutch military used systematic, extreme violence against Indonesians. In his book Soldaat in Indonesië (Soldier in Indonesia), to be released at the end of October, historian Gert Oostindie draws the same conclusions using different sources. He presents new findings…

Refugees’ effect on domestic terrorism is conditioned by host-country social perception (attitude about living next-door to foreigners) and economic competition. These hypotheses are tested cross-nationally from 1995-2014 leveraging data from the World Values Survey.

This book presents an understanding of the concept of Countering Violent Extremism from a critical terrorism studies perspective using case studies from different countries while examining the issues it raises.

Jeanine de Roy van Zuijdewijn, Chelsea Daymon and David Malet, wrote RESOLVE Network Research Report that examines career foreign fighters who have traversed from one insurgency to another.

This article provides a comprehensive analysis of the Islamic State's use of images taken by drones, drawing on a dataset of ISIS propaganda images from October 2016 to December 2018.

The European Commission awarded the project proposal INSIGHT, a follow-up project on illegal firearms trafficking and gun violence from Professor Social Resilience and Security Marieke Liem and PhD-researcher Katharina Krüssselmann of the Institute of Security and Global Affairs (ISGA).