The jurisprudence of international administrative tribunals holds great relevance for international organisations, as seen in the proliferation of these tribunals, the complexity of their jurisprudence, and their practical impact. This book provides a comprehensive and accessible analysis of essential topics in this field, including applicable sources, jurisdiction and admissibility, grounds for review, equality and non-discrimination, and remedies. It also covers key emerging issues, such as the rights of non-staff personnel, the growing application of international human rights law by tribunals, and the protection of acquired rights. Drawing on thousands of decisions, this book is an invaluable resource for both practitioners and scholars. For practitioners, it offers a practical guide to navigating complex cases. For scholars, it highlights common principles and key divergences across the jurisprudence of some thirty tribunals, at the same time illuminating the increasingly sophisticated interplay between international administrative law and public international law.

‘Finally a comprehensive analysis of international administrative law, offering many interesting ideas and rich references to the jurisprudence! This collective work in English is an eagerly awaited book, which is an indispensable resource for any practitioners in this area of law, including legal services of international organizations, staff associations, and private attorneys.’

Dražen Petrović - Judge of the Administrative Tribunal of the Bank of International Settlements and former Registrar of the ILOAT

‘From a practitioner’s perspective, the breadth and depth of the book’s comparative analysis are particularly valuable. By examining both jurisprudence and institutional practice across different international administrative tribunals, the authors illuminate important areas of convergence as well as enduring divergences across the field. The book offers readers a more holistic understanding of international administrative law, including the jurisdictional and institutional differences that shape adjudication across tribunals. It also enables practitioners to identify the most persuasive and well-established lines of reasoning developed across tribunals, thereby contributing to a more coherent and predictable body of international administrative law.’

Annika Talvik - Senior Legal Specialist, Office of the Legal Adviser, International Labour Organization

‘Just as the first exemplar of the species is counting down to its centenary, the study of international administrative tribunals in general has been given a comprehensive makeover in this handsome volume. The authors have garnered a vast amount of information on the history and functioning of such tribunals, and on selected aspects of the law they apply, which is presented in a systematic and easily usable form. While identifying commonalities and convergence, the authors also detect instances of dissonance and divergence. Divergence, of course, has its uses; better a variety of approaches to a legal problem than early convergence on a solution which produces unjust or impractical results. With the breadth of its coverage and the soundness of its analysis, the book will doubtless become a standard reference work for judges, practitioners and legal advisers, and may fan the spark of academic interest in the subject.’

Kieran Bradley - President of ESMAT; Member of IDBAT, IMFAT, ECMWF AB, and SKAO IET; Chairman of Executive Committee of IAT Cooperation Agreement

‘The authors have succeeded in accomplishing a Herculean task: writing a book that in a comprehensive way describes and analyses the legal protection afforded by a growing number of international administrative tribunals. The fact that the book was written collaboratively has in no way detracted from the coherence of the final product, which is no mean feat. In the successive chapters, covering organisational, substantive and procedural aspects, the authors seek to identify the general principles applicable to all tribunals. Strong points are a clear structure, a well-considered selection of sub-aspects to be addressed, the thoroughness of the analysis, a comparative approach where appropriate, the inclusion of relevant cases by way of illustration, and numerous references to legal doctrine and other case law. It is a high-quality foundational work, useful for researchers and practitioners engaged not only with proceedings before international administrative tribunals - a specific branch of administrative law - but also with international law or administrative law in general.’

Paul Lemmens - Chair of the Administrative Tribunal of the Council of Europe

‘This book is an excellent contribution to the domain of international civil service law, offering valuable guidance to legal practitioners and academics as well as the personnel, administrations and staff associations of intergovernmental organisations. The wealth of research and comparative analysis by the authors of the jurisprudence of numerous international administrative tribunals highlights points of convergence and divergence between the various jurisdictions and significantly clarifies fundamental principles and complex issues.’

Sofia Intoudi - Head of the Institutional Law Section, Legal Service, CERN