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

One of the recurring points of discussion within the Criminal Justice research programme is the question of what behaviour should or should not fall within the scope of criminal law. This research theme is examined from a legal-dogmatic and social-scientific perspective.

To what extent does the Law Ombudsperson for Children achieve its goals as intended by the legislator when introducing the law?

The International Air Law Moot Court Competition is a unique opportunity for students seeking to gain experience in the development of arguments in the field of international law and international air law, while also establishing contacts around the world.

Understanding how data derived from wearable technology can be used to identify effective changes in behaviour that are likely to result in health improvements

On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.

Are you thinking about studying Public International Law? Learn more and watch the videos.

Sustainability and the law lecture series featuring guest speakers discussing legal and social aspects.

Are UN sanctions regimes in need of further formalization in terms of substantive design, procedural architecture and with a view to regulating and governing the interplay with other regimes?

This edited publication aims at reflecting on the future of discussions on the applicability of international law to States’ use of ICTs in the context of highly politicised discussions at the multilateral level and offering practical suggestions for the European Union to pursue its objectives in this…

Predictive maintenance (PdM) is a maintenance policy that uses the past, current, and prognosticated health condition of an asset to predict when timely maintenance should occur.

Data science is now growing fast in many places, but scholars at Leiden University have been developing data science techniques for a long time already. Thanks to their broad-based expertise, Leiden statisticians are currently combining the achievements in statistics with the latest methods of statistical…

The ECtHR needs to provide effective rights protection, but it also needs to set clear standards while showing deference to decisions made at the national level. Especially when socio-economic issues are concerned, meeting these different demands is a challenging task.

How can international investment law and arbitration take account of the public interest in, and more broadly, the public dimension of, the relations between foreign investors and host States ?

On 7 May 2020, Jolanda van der Vliet defended her thesis 'The International Legal Protection of Environmental Refugees. A human rights-based, security and State responsibility approach'. The doctoral research was supervised by Prof. N.J. Schrijver and Prof. J.J.C. Voorhoeve.

The use of increasingly large and diverse datasets to guide urban climate action has implications for how, and by whom, local governments are held accountable.

This project develops a scientific method to extract clinically relevant new information from patient forum websites that discuss patient experiences concerning e.g. medication, nutrition, co-morbidities, genetic factors etc.

In this course, you will gain a deep insight into the rules that govern armed conflict, and aim to mitigate human suffering on the battlefield. You will explore the why and how of International Humanitarian Law, followed by the different types of conflict.

This thesis deals with the use of sound in interactions in the context of participatory systems and data sonification. We investigate an interactive environment where participants perceive information of the data through sound elements.

Although sexual abstinence before marriage is no longer the central message in The Netherlands the affective relationship as a criterion for professionals within criminal justice can be seen as a more contemporary version of marriage.

Comparison across jurisdictions is one way of assessing the appropriateness of lethal force resulting from the actions of law enforcement agencies. This article sets out a vision for a global use of force monitor that can enable meaningful comparisons between law enforcement agencies. It examines some…

Archiving Medieval and Post-Medieval Archaeological Fieldwork Data from the Eastern Mediterranean (600-2000)

Is the legitimacy of law and governance of multilevel jurisdictions diminishing? What is the significance of (diminishing) legitimacy for the effectiveness of law? These kinds of questions about the legitimacy of the supranational formation of law, its application, and the policy and governance based…

Municipalities are increasingly attempting to solve problems without issuing decisions. A notification procedure (notification – investigation – application – decision) has recently been introduced that replaces part of the traditional application procedure. Ymre Schuurmans, Professor of Constitutional…

This book offers a comprehensive analysis of the international law applicable to cyber operations, including a systematic examination of attribution, lawfulness and remedies. It demonstrates the importance of countermeasures as a form of remedies and also shows the limits of international law, highlighting…

An important component of your Law and Society master consists of extracurricular activities.

The impact of the coronavirus crisis on the judicial system.

The protection of civilians (POC) in armed conflict has become a core strategic objective for the United Nations system and for UN peace operations in particular. The UN, however, is not the sole actor engaged in POC.

Just published: United in incoherence – Private law concepts under pressure from European financial law (in Dutch), in: Tijdschift voor privaatrecht 2017-4

How does the criminal justice system in Indonesia safeguard the rights of and access to justice for witnesses and victims?

What are the institutional dynamics of the adoption of internal market legislation?

On 12 mei 2020, Darryl Robinson defended 'Exploring Justice in Extreme Cases: Criminal Law Theory and International Criminal Law'. The doctoral research was supervised by Prof. C. Stahn.

Als gevolg van de grote technologische vooruitgang in de gezondheidszorg worden in toenemende mate gegevens verzameld tijdens de uitvoering van klinische onderzoeken.

In this policy brief, Dennis Broeders, Els De Busser and Patryk Pawlak discuss attribution of in cyberspace from three different perspectives: criminal law, international law and policy. Published together with EU Cyber Direct.

The Advanced Master's specialization International Criminal Law at Leiden University examines international criminal law and international criminal procedure.

The central question in this study is: ‘What can the Netherlands learn from the way in which these countries have organized law enforcement and the rule of law in their overseas territories?’

On Wednesday 13 December 2017 René Hage defended his doctoral thesis entitled ‘Handhaving van privaatrecht door toezichthouders’ (Enforcement of private law by regulatory authorities).

This question was discussed on the Dutch NPO Radio 1 broadcast with Barend Barentsen, Professor of Labour Law. On 4 September, Americans celebrate Labor Day, a day on which the hard-working American takes centre stage.

Criminal Law and Criminology is is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University.

Our Advanced Master Air and Space Law (LL.M.) combines public air law, private air law and space law from a European and an international perspective.

Identifying natural plant-associated bacteria that provide targeted inhibition of pathogens through the production of antimicrobial peptides.

Constitutional and administrative law is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University. This programme looks closely at the interaction between national and European law.

On 30 June 2016, Eesa Fredericks is expected to defend his Ph.D.-thesis ‘Contractual Capacity in Private International Law’ in Leiden. Supervisors are prof. Sierd J. Schaafsma (Leiden) and prof. Jan Neels (Johannesburg).

Our Master Public International Law (L.L.M.) you will gain understanding of the legislation that governs international relations in a complex global society