UCL Faculty of Laws


Dr Martins Paparinskis

Reader in Public International Law

Faculty of Laws


Joined UCL
1st Sep 2013

Research summary

Martins is a generalist public international lawyer with a variety of specialist interests. He has published on foundational topics of public international law, such as sources of international law, law of treaties, State responsibility, and international dispute settlement, as well as on topics in the subfields of international investment law, international human rights law, and international environmental law. Martins has published with the American Journal of International Law, the British Year Book of International Law, the European Journal of International Law, and the Modern Law Review, and for his monograph with Oxford Monograph Series in International Law. His work is regularly and globally cited on issues of international law by and before domestic courts and international tribunals, e.g. last July by OOO Manolium Processing v Belarus, PCA Case no 2018-06, Final Award; in September by the Lion Mexico Consolidated v Mexico, ICSID Case no ARB(AF)/15/2, Award; in October by the High Court of Singapore in Westbridge Ventures II Investment Holdings v Anupam Mittal [2021] SGHC 244; in November by Chile in the judgment of the Inter-American Court of Human Rights in Professores de Chanaral y otras Municipalidades Vs. Chile; and this March in Trustees for the time being of Burmilla Trust and Another v President of RSA and Another (Case no 64/2021) [2022] ZASCA 22 of the Supreme Court of Appeal of South Africa

Teaching summary


Public International Law (LAWS0027)


International Arbitration (LAWS0256): Co-convenor

International and Global Environmental Law (LAWS0274)

International Human Rights Law (LAWS0232)

International Law of Foreign Investment (LAWS0239): Convenor

Law and Policy of International Courts and Tribunals (LAWS0235): Convenor


University of Oxford
Doctorate, Doctor of Philosophy | 2010
University of Oxford
Other higher degree, Master of Philosophy | 2006
University of Oxford
Other higher degree, Master of Laws | 2005
Latvia State University
First Degree, Bachelor of Laws | 2004


Martins Paparinskis joined UCL Faculty of Laws in 2013. Prior to this, he was a Junior Research Fellow at Merton College Oxford and a Hauser Research Scholar at the New York University. He took an LL.B. from the University of Latvia, before coming to the UK to take his M.Jur. (Dist, Clifford Chance Prize), M.Phil (Dist), and D.Phil. from the University of Oxford. He is a Member of the PhD Scientific Board of the Doctoral College of the University of Milan-Bicocca and a Global Fellow at the National University of Singapore Centre for International Law, and has held visiting positions at the National University of Singapore and the University of Bologna. In 2016, he received UCL Laws Excellence Award for Legal Teaching (EXALT): Graduate. 

Martins' research expertise is reflected in his appointments. He is a member designate of the United Nations International Law Commission, elected by the General Assembly in 2021 upon the joint nomination of Latvia, Estonia, and Lithuania for the 2023-27 quinquennium. Martins is a member of the Council of Independent Experts in International and European Law with the Minister of Foreign Affairs of Latvia (since 2012), and was the lead drafter of its opinion that formed the basis for Latvia's 2019 declaration recognizing the jurisdiction of the International Court of Justice as compulsory. He has been a member of Latvia's delegation to the United Nations General Assembly's Sixth Committee (Legal) and delivered statements there on behalf of the Baltic States (2021). In the field of international dispute settlement, he is a member of the Permanent Court of Arbitration (since 2017) and a conciliator of the OSCE Court of Conciliation and Arbitration (since 2019). In the field of international investment law, Martins is a member of the ICSID Panels of Arbitrators (since 2014, re-designated 2020) and of Conciliators (since 2020) and a member of the Beijing Arbitration Commission / Beijing International Arbitration Center's Panel of Arbitrators for International Investment Arbitration (since 2022). In the field of human rights law, he is a member of the management board the EU Fundamental Rights Agency (since 2017) and the Advisory Committee on the Framework Convention for the Protection of National Minorities (since 2022), and has been an expert in a case by the invitation of the Inter-American Court of Human Rights (2022). In the field of international environmental law, Martins is a member of the implementation committee of the UNECE Water Convention (since 2018). 

Martins is the Book Review Editor of the Journal of World Investment and Trade, a co-editor of Current Legal Problems, and a member of the Academic Review Board of the Cambridge Journal of International Law, the Editorial Board of the Journal of the University of Latvia. Law, the Advisory Board of the UCL Journal of Law and Jurisprudence, the Editorial Advisory Board of Investment Claims, and UCL Press executive group (editorial board). He is a member of the Academic Forum on ISDS, the Academic Council of the Institute for Transnational Arbitration, the Advisory Board of the BIICL Young ITF, and the International Law Association’s Committee on Rule of Law and International Investment Law. Martins has been a member of the Association's Committee on Non-State Actors and Study Group on the Use of Domestic Law Principles for the Development of International Law.