With a view to recent developments in both the EU and the global legal order, International Law as Law of the European Union explores how, and to what extent, international law still forms part of, and plays a role in, the current legal order of the European Union.

In Ius Doni in International Law and EU Law, Dr. Christian H. Kälin establishes the concept of ius doni in the contemporary legal and political theorising of citizenship. Providing a comprehensive analysis of the subject, the book discusses the legal and political concepts of citizenship. It also introduces a new term for what is already an increasingly common and accepted practice of granting citizenship on the basis of substantial contributions to the State. Consisting of two main parts – law and practice – the monograph analyses the ius doni concept in both international law and EU law, further tests its application in practice and establishes best practices among states. Finally, the book discusses the conceptual and practical implications for citizenship.

The book offers a systematic discussion of the facets of the relationship between the European Union and customary international law.

In 2022, the ILC adopted the Draft Conclusions on Peremptory Norms of General International Law. The text of the Draft Conclusions consists of twenty-three Draft Conclusions and addresses two aspects: the identification of peremptory norms and their legal consequences. Attached to the Draft Conclusions is an Annex with a non-exhaustive list of jus cogens norms previously identified by the Commission. The International Law Commission's Draft Conclusions on Peremptory Norms serves, in part, as a commentary on the ILC's work and provides a broader understanding of the Draft Conclusions from the perspective of an insider. The book goes beyond a commentary, however, as it provides an analysis and evaluation of the broader legal issues raised by the Draft Conclusions. Relying inter alia on the discussions within the Commission and the doctrinal debate surrounding the concepts covered, the book will not only offer explanation of what is addressed in the Draft Conclusions but also an assessment of the choices made by the Commission and the consequences of those choices.

This two-volume book, published open access, brings together leading scholars of constitutional law from twenty-nine European countries to revisit the role of national constitutions at a time when decision-making has increasingly shifted to the European and transnational level. It offers important insights into three areas. First, it explores how constitutions reflect the transfer of powers from domestic to European and global institutions. Secondly, it revisits substantive constitutional values, such as the protection of constitutional rights, the rule of law, democratic participation and constitutional review, along with constitutional court judgments that tackle the protection of these rights and values in the transnational context, e.g. with regard to the Data Retention Directive, the European Arrest Warrant, the ESM Treaty, and EU and IMF austerity measures. The responsiveness of the ECJ regarding the above rights and values, along with the standard of protection, is also assessed. Thirdly, challenges in the context of global governance in relation to judicial review, democratic control and accountability are examined. On a broader level, the contributors were also invited to reflect on what has increasingly been described as the erosion or ‘twilight’ of constitutionalism, or a shift to a thin version of the rule of law, democracy and judicial review in the context of Europeanisation and globalisation processes. The national reports are complemented by a separately published comparative study, which identifies a number of broader trends and challenges that are shared across several Member States and warrant wider discussion. The research for this publication and the comparative study were carried out within the framework of the ERC-funded project ‘The Role and Future of National Constitutions in European and Global Governance’. The book is aimed at scholars, researchers, judges and legal advisors working on the interface between national constitutional law and EU and transnational law. The extradition cases are also of interest to scholars and practitioners in the field of criminal law. Anneli Albi is Professor of European Law at the University of Kent, United Kingdom. Samo Bardutzky is Assistant Professor of Constitutional Law at the University of Ljubljana, Slovenia.

In The Crime of Genocide Then and Now: Evolution of a Crime, the editors Pavel Šturma and Milan Lipovský submit an analysis of the readiness of the definition of genocide to the world of 21st century.

Presenting up-to-date case law and a freshly updated bibliography, this second edition of The Law of Treaties is a valuable addition to contemporary international law scholarship. It offers much-needed clarity on complicated legal cases and questions while maintaining a highly readable style.

Mechanisms for individuals to bring claims under international law have become increasingly common in recent decades, particularly in human rights and investment law. Nonetheless, when the International Law Commission codified the law of State responsibility, it largely ignored the bringing of international claims by individuals, and the relationship between such claims and those brought on the interstate level. Overlapping Individual and Interstate Claims in International Law is the first dedicated monograph examining this relationship - one that is of mounting importance on both a practical and theoretical level. This work provides a comprehensive survey of the potential for overlapping individual and interstate claims to arise. It underlines issues of fairness, consistency, and interference with autonomy that can result when multiple claimants vie to have their claims determined before different forums. The author analyses in detail how treaty provisions and various rules and principles of international law can be expected to regulate such overlapping claims, considering, among others, the local remedies rule, the rule precluding double recovery, res judicata, waiver, and certain circumstances precluding wrongfulness. The book clarifies the nature of international claims, including in the theoretically muddled field of diplomatic protection, and highlights undertheorized foundations of topical debates concerning the use of countermeasures and self-defence outside of the interstate arena. It concludes with a human rights-oriented proposal for resolving the complex policy issues to which these overlapping claims give rise.

The rapid development of information technology has exacerbated the need for robust personal data protection, the right to which is safeguarded by both European Union (EU) and Council of Europe (CoE) instruments. Safeguarding this important right entails new and significant challenges as technological advances expand the frontiers of areas such as surveillance, communication interception and data storage. This handbook is designed to familiarise legal practitioners not specialised in data protection with this emerging area of the law. It provides an overview of the EU’s and the CoE’s applicable legal frameworks. It also explains key case law, summarising major rulings of both the Court of Justice of the European Union and the European Court of Human Rights. In addition, it presents hypothetical scenarios that serve as practical illustrations of the diverse issues encountered in this ever-evolving field.