Leiden scientists will be working on the development of a camera for the European Extremely Large Telescope that is currently under construction. On 28 September the Netherlands Research School for Astronomy signed an agreement with the European Southern Observatory.

The International Court of Justice (ICJ) has commenced hearings on Israel’s ban on UN organisation UNRWA. Larissa van den Herik, Professor of Public International Law, commented on news programma NOS Nieuws.

The EU and Switzerland have negotiated a broad package of agreements that awaits formal signature by the parties.

The Centro de Estudos Internacionais at Instituto Universitário de Lisboa (ISCTE-IUL) will host the

On 15-16 December, Simona Demková participated in a Closing conference and a Book launch event of the University of Luxembourg doctoral training programme on the Enforcement Challenges in Multilevel Regulatory Systems – DTU REMS.

Last Wednesday, on 12 May 2021, Leiden University hosted the virtual Young FIDE Seminar. This online event brought together junior EU law scholars and practitioners to discuss the three topics of the main XXIX FIDE Congress, which will take place from 3 to 6 November 2021 in The Hague and of which Leiden…

On 19 December 2019, Reza Eftekhar defended his thesis 'The Role of the Domestic Law of the Host State in Determining the ratione materiae Jurisdiction of Investment Treaty Tribunals: The Partial Revival of the Localisation Theory'. The doctoral research was supervised by Prof. E. de Brabandere.

On 16 June 2017, the 3rd CML Rev on tour took place in Berlin. The workshop on ‘The EU and Globalisation: Assets and Liabilities’ was organized in cooperation with LMU Munich and the Wissenschaftskolleg zu Berlin.

On Monday 24 April 2023, the Europa Institute held a hybrid Leiden Law Exchange (LLX) Roundtable to discuss the Irish Supreme Court’s Costello ruling on the government’s proposed ratification of the EU-Canada Economic and Trade Agreement (CETA).

This paper explores how citizenship is enacted and experienced in welfare encounters for Egyptian migrant parents in Paris, Amsterdam, and Milan, highlighting the importance of social citizenship and personal interactions in shaping belonging.

On 19 July 2021, Nathan de Arriba-Sellier published an op-ed in Le Monde regarding the integration of climate change in the new monetary policy strategy of the European Central Bank (ECB).

It's a no-brainer: of the candidates that you can vote for on 23 May, 14 studied at Leiden University. We asked four of them about their motivation and ambitions. In this article we interview Samira Rafaela, alumna of Public Administration, and Caspar Rutten, who is studying Law.

The 11th annual conference of the Academic Society for Competition Law (ASCOLA) of 2016 took place this year on 30 June- 2 July at Leiden University.

During an Erasmus+ research stay in Rwanda, Frederik Behre gave several guest lectures to bachelor's and master's students enrolled in the various law programmes of the University of Rwanda. In the course of his four-week research stay, Behre organised a series of highly interactive lectures with the…

Professor of Financial Law Matthias Haentjens is recently appointed member of the European Commission’s Expert Group on Conflict of Law regarding Securities and Claims. The Group’s tasks shall be to assist the Commission with its work on conflict of laws on third-party effects of transactions in securities…

A new social media campaign launched by students from across Europe, including Frederik Behre from the Europa Institute, is aiming to motivate young Europeans to go to the polls.

Following the conference of the 20th Austrian European Law Day in September 2021 at the University of Liechtenstein in Vaduz, the academic papers of the conference have now been published in book form. The book contributions include a chapter by Christa Tobler: Christa Tobler, 'Finally Brexit - Alternative…

On 26 October 2023, Vincent Delhomme spoke at the inaugural conference of the newly founded ICON-S Benelux Chapter, hosted by Maastricht University. The overarching theme of the conference was 'Crises, Challenges, and the Future of Public Law'. Vincent participated in the panel on ‘The challenges of…

On Thursday 21 October 2021, the Europa Institute held a hybrid roundtable on the legal feasibility of financing future EU policies – such as EU Green Deal measures – through debts and of thereby extending the novel funding mechanism introduced by Next Generation EU (NGEU). This roundtable was organised…

A one-day conference was organised by the International Institute of Air and Space Law at Leiden University on 11 May 2023, in the lead-up to the 14th Leiden-Sarin International Air Law Moot Court Competition. The topic of the conference was ‘Aviation Cybersecurity’, which was also the topic of this…

In Spring 2023, Simona Demková and Daniel Mândrescu from the Europa Institute secured the new Leiden University Starting Grant, valued at EUR 240,000, for a collaborative project: ‘The EU’s Human-Centred Digital Transformation.’

How does the development of digital technologies impact society, and law/regulation within that society?

Het Internationaal Strafhof krijgt veel kritiek op haar tanende invloed als het gaat om gerechtigheid in Oekraïne en Palestina. Larissa van den Herik, hoogleraar internationaal publiekrecht, sprak met Trouw: ‘Internationaal recht is altijd in ontwikkeling en is altijd imperfect.’

On May 24 Jorrit Rijpma took part in a panel discussion on “national states, common borders: future of border management in Europe, taking place in Warsaw, Poland.

Today, 189 out of 193 officially recognised nation-states have a written constitution, and 75% of these have been ratified since 1975. How did this worldwide diffusion of constitutions come about?

On 21 May 2025, the chief negotiators of Switzerland and the EU Brevier initialled a package of agreements intended to strengthen their legal ties that have developed since the 1950s

Tech company Eyeball collects images and data on young amateur football players on a large scale. But is this allowed? Bart Custers, Professor of Law and Data Science, and Gerrit-Jan Zwenne, Professor of Law and Digital Technologies, comment on the issue in ‘NRC’ newspaper.

Giovanni Gruni publishes a peer reviewed paper in the Korean Journal of international and Comparative Law.

The International Institute of Air and Space Law hosted a book launch event at the Leiden Law School on March 20, 2025, featuring the launch of two important publications in the field of air and space law.

Anmol Dhawan (24) graduated cum laude from the Advanced LLM in Air and Space Law in Leiden on 28 August 2023. He comes from Mumbai in India and did his bachelor law studies at National Law University Delhi. He has been in the Netherlands since September 2022, so over one year now.

De Europese Unie bekijkt mogelijkheden om geblokkeerde Russische tegoeden aan te wenden ter ondersteuning van Oekraïne. Joris Larik, universitair hoofddocent Europees en internationaal recht, duidt de zaak in een interview voor Al Jazeera.

On 27 February 2025, Melanie Fink took part in a Workshop on ‘Lawyering for change - but what change exactly?’ that took place at the University of Amsterdam and was organised by Pola Cebulak, Marta Morvillo, and Stefan Salomon.

Ticketmaster – the largest ticket sales company in the world – is under fire from both consumers and Dutch MPs. The reason is the sale of tickets for the Lowlands festival, where resale tickets are costing at least 100 euros more than the original ticket price of 300 euros. Political parties GroenLinks,…

On 17 November 2014, the Leiden Law School and the University of Beihang, China signed a Memorandum of Understanding.

The dramatic geopolitical changes of the last few years and other crises have led the EU to reconsider the function and role of its internal market. Increased focus is now placed on ensuring the future competitiveness, economic security and resilience of Europe.

On 8 December 2017, the European Commission decided that the International Skating Union (ISU)’s eligibility rules, which impose severe penalties on athletes participating in speed skating competitions that are not approved by the ISU, are in breach of EU competition law.

Leiden2022 is a 365-day science festival for everyone who has a sense of curiosity. Scientists from Leiden University will be making a major contribution. On 10 November, Leiden2022 presented the programme for the coming year, when Leiden will be European City of Science.