Knowledge is everywhere at Leiden University. It is also accessible for those who do not study or work at the University.

Our research projects address cutting-edge and forward-looking societal challenges at the intersection of law and technology.

The team of WIIS-Netherlands exists out of the board members and the advisory council.

Jens Iverson, Assistant Professor of International Law and a Researcher in the Jus Post Bellum Project, defended his Ph.D. dissertation on 21 September 2017.

In this thesis, dynamic testing principles were applied to examine young children's potential for learning. Our studies focused on the role of cognitive flexibility, to further increase our understanding of the cognitive processes involved in children's ability to learn from instruction and feedback,…

Research in the arts at the Academy of Creative and Performing Arts (ACPA)  

Research at Leiden Law School means research at the highest level.

The Mathematical Institute is responsible for the research and education in mathematics and statistics at Leiden University.

The 3rd International Workshop on Klinefelter Syndrome, Trisomy X, and XYY will be held at The Academy Building, Rapenburg 73, Leiden. It is situated in the city center, close to hotels, restaurants and attractions.

PhD defence

PhD defence

PhD defence

PhD defence

PhD defence

PhD defence

PhD defence

Award ceremony

Leiden University’s Annual Report covers education, research, innovation, knowledge valorisation, infrastructure, staff and finances.

On 18 september 2018, Claudia Bouteligier defended her doctoral thesis 'Dialoog in recht en literatuur. The doctoral research was supervised by Prof. mr. dr. A. Ellian.

Both Europe and Latin America face challenges globally and at home. Conflicts over land and resources have been resurgent in recent years.

On Tuesday 26th September Jessica Hill defended her thesis ‘On the road to adulthood. Delinquency and desistance in Dutch emerging adults’. The supervisor is Professor Arjan Blokland.

On 10 June 2021, Merinda Stewart defended her thesis 'Freedom of Overflight: A Study of Coastal State Jurisdiction in International Airspace'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon en Prof. J.J. Rijpma.

On 25 January 2018 Yannick van den Brink defended his doctoral thesis titled ‘Voorlopige hechtenis in het Nederlands jeugdstrafrecht’ (‘Pre-trial detention in the Dutch juvenile justice system’). The doctoral research is supervised by Professor Ton Liefaard and Professor Mariëlle Bruning.

On 31 January 2018 Vestert Borger defended his dissertation entitled ‘The Transformation of the Euro: Law, Contract, Solidarity’. The dissertation has been written under the supervision of Professor Stefaan Van den Bogaert (supervisor) and Dr Jorrit Rijpma (co-supervisor).

In this policy paper, Joachim Koops and Christian Patz are discussing Germany’s comprehensive assessment of Protection of Civilians readiness at the national level.

Leiden University Graduate School of Teaching

This publication by Cornelis van Tilburg, will be published at Sidestone Press on September 28, 2022. It discusses various aspects of city gates in the Western Roman Empire: Italy, Spain, Gaul, Germany and Britain.

On 26 juni 2018, Claire Achmad defended her doctoral thesis 'Children’s Rights in International Commercial Surrogacy: Exploring the Challenges from a Child Rights, Public International Law Perspective'. The doctoral research was supervised by Prof. Dr. Mariëlle Bruning.

Institute of Biology Leiden (IBL) is an internationally oriented institute for research and education in biology. We are part of the Faculty of Science at Leiden University.

How can party bans be justified? Which parties were banned in post-war Europe – and why? Do militant democracy instruments work? Is an international militant democracy concept in the making?

On 17 December 2018, Dejian Kong defended his thesis 'Civil Liability for Damage caused by Global Navigation Satellite System'. The doctoral research was supervised by Prof. dr. P.M.J. Mendes de Leon.

Promotor: Prof.dr. H.P. Spaink, Co-promotor: Prof.dr. A.H. Meijer

The Institute of Cultural Anthropology and Development Sociology (co)organises various events during the year.

On 21 February 2019, Ruben Zandvliet defended his thesis 'Trade, Investment and Labour: Interactions in International Law'. The doctoral research was supervised by Prof. dr. N.J. Schrijver.

On 25 November 2020, Sara Arendse defended her thesis 'De uiterlijke verschijningsvorm in het strafrecht'. The doctoral research was supervised by prof. C.P.M. Cleiren and prof. J.M. ten Voorde.

PhD Candidates are encouraged to start thinking about job prospects well before the defence of their thesis. This page contains information about how to prepare yourself.

On 19 February 2019, Mirjam Sombroek-van Doorm defended her thesis 'Medisch beroepsgeheim en de zorgplicht van de arts bij kindermishandeling in de rechtsverhouding tussen arts, kind en ouders'. The doctoral research was supervised by Prof. dr. A.G. Castermans en Prof. mr. C.J.J.M. Stolker.

On 9 April 2019, Yudan Tan defended her thesis 'The Rome Statute as Evidence of Customary International Law'. The doctoral research was supervised by Prof. dr. W.A. Schabas.

On 7 March 2019, Maria de Jong-de Kruijf defended her thesis 'Legitimiteit en rechtswaarborgen bij gesloten plaatsing van kinderen'. The doctoral research was supervised by Prof. mr. M.R. Bruning en Prof. mr. T. Liefaard.

Are you eager to bring your own questions and curiosity into scientific research? Do you question intelligence and technology in a fundamental, creative, and playful way? Could you be a researcher who challenges scientific practice and pushes its boundaries?

Where does the urge to collect come from? What are the explicit or underlying reasons for gathering large amount of objects?

Knowledge that helps protect the Netherlands and Europe from military and cyber threats.

The Centre for Science and Technology Studies (CWTS) is a research institute at Leiden University working on improving how science is practiced and governed and how it serves society.

On 1 February 2018 Nathalie-Sharon Koster defended her doctoral thesis ‘Crime victims and the police’. The doctoral research was supervised by Professor J.P. van der Leun and M.J.J. Kunst.

On 1 February 2018 Charlotte Vrendenbarg defended her PhD dissertation