This article discusses the relationship between particular and general customary international law, grappling with academic views affirming that, ordinarily, the emergence of the former is a stage in the consolidation of the latter. It is argued that the higher standard of State consent required for the configuration of bilateral or regional custom suggests otherwise. In addition, it is also contended that a distinctive kind of opinio juris must be present for particular custom to arise: a conviction from the States concerned that their conduct is governed by particular (as opposed to general) customary law.

This article argues that the purpose of the English gateways for service out of the jurisdiction is to identify a presumptive meaningful connection; that courts have used different mechanisms to rebut the presumption of a meaningful connection established by the gateways; and that there are lessons to be learnt from a clearer, more explicit understanding of this presumptive purpose of the gateways. The article uses Brownlie (I and II) and Fong v Ascentic Ltd to support and illustrate these arguments.

Global digital integration is desirable and perhaps even inevitable for most States. However, there is currently no systematic framework or narrative to drive such integration in trade agreements. This article evaluates whether community values can offer a normative foundation for rules governing digital trade. It uses the African Continental Free Trade Area (AfCFTA) Digital Trade Protocol as a case study and argues that identifying and solidifying the collective needs of the African region through this instrument will be key to shaping an inclusive and holistic regional framework. These arguments are substantiated by analysis of the regulation of cross-border data flows, privacy and cybersecurity.

Constitutional courts operate under a framework of formal and informal rules. While formal rules have been extensively studied, our understanding of informal rules remains limited. Courts often rely on internal practices, traditions and unwritten customs developed over time, posing a significant challenge due to their hidden nature. Numerous constitutional courts lack detailed voting protocols in their statutes and internal regulations, leaving essential aspects to the court's discretion, such as, inter alia, the voting order, deliberation style, outcome versus issue voting and tie-breaking protocols. By employing a case study of strategic breaching of informal voting protocols in the Mexican Supreme Court, this article highlights the complexity of enforcing informal voting rules given that external actors may be unaware of them, along with other factors. Even when informal rules are broadly known, certain circumstances may diminish the efficacy of informal sanctions addressing their breach. Thus, key judicial players, such as chief justices or judge-rapporteurs, may take advantage of the informal rules of voting protocols to advance their policy preferences.

The relationship between scholarship and adjudication has attracted considerable attention in recent years, especially in those areas where significant academic expertise has been developed and academic scrutiny of decisions is common. Yet the role of scholars and scholarship in the context of the adjudicatory practices of the European Court of Human Rights (ECtHR) has remained palpably under-investigated. This article begins to fill this gap in the literature by carrying out the first large-scale empirical study of the use of scholarship by the ECtHR. The authors rely on a purpose-built dataset comprising all the citations made by the Grand Chamber of the Court in judgments and separate opinions appended to it. The study finds that the Court's majority uses scholarship for the purposes of reviewing facts and interpreting international and domestic law but does so rarely. The majority of the ECtHR does not use scholarship to interpret the European Convention on Human Rights or for persuasive purposes, unlike the individual Judges in their separate opinions. Indeed, individual Judges refer to scholarship more often, for more varied and arguably different purposes. This use, however, is inconsistent in terms of both frequency and the types of sources referred to.

Marine war risk insurance fundamentally contemplates casualties caused by international conflict. Curiously, however, standard clauses also exclude cover and automatically terminate war risk policies in the event of an outbreak of war between a select group of historically powerful States: China, France, the United Kingdom, the United States and Russia. This article aims to demystify the origins of this five-powers clause and evaluate its prospective application through the lens of an emerging breed of confrontation among the world's major powers.

The characterisation, legal status and future of islands are increasingly prominent in international and legal affairs. This emerging ‘legal era of islands’ demands a clearer understanding of the multiple distinctive legal issues that islands, whether as sub-national political units or as the territory of continental or mainland States, raise. This article conducts the first contemporary study of these issues by examining the international and constitutional legal status of island territories. It finds that although the relationship between islands and mainland States is characterised by incredible diversity, island territories are pursuing a range of innovative strategies to preserve and protect their autonomy.

This article examines reactions to the South China Sea and Chagos Marine Protection Area arbitrations under the United Nations Convention on the Law of the Sea (UNCLOS), in particular concerns about the potential widening of Part XV jurisdiction and its impact on the dispute resolution system's consent basis. It argues that assessing the impact of such cases involves a characterization of both the function of Part XV and of international judges. Ultimately, it suggests that the best test of whether UNCLOS case law has gone too far is the reaction of States in designing dispute settlement under the new Agreement under UNCLOS on the Conservation and Sustainable Use of Marine Biological Diversity of Areas Beyond National Jurisdiction.

Since the 1960s sign languages have been identified as natural human languages and conceived of as a key feature of Deaf culture and identity. Eschewing the notion of disability, deaf advocacy organisations have connected the use of sign language to linguistic and cultural rights. Despite the clear preference of deaf advocates, the legal protection of sign languages remains uneven and somewhat difficult to grasp, being situated at the intersection of disability rights and linguistic rights. Few attempts have been made to identify the extent to which sign languages are recognised and enshrined within domestic legal systems. This article aims to propose a novel taxonomy that focuses on the normative conceptualisation of sign language and deaf people in national legislation. Based on a comparative analysis and focusing on European Union Member States, it identifies three main approaches: an explicit ‘minority’ approach—ie the express recognition of deaf persons as a linguistic minority; a more nuanced ‘cultural approach’—which acknowledges sign language as autonomous language and provides for promotional measures; and a ‘disability’ approach—which mandates and/or promotes the use of sign language primarily as an accessibility measure.

In the past decade, the practice of investor–State arbitral tribunals addressing investment protection in the context of armed conflict and military occupation has expanded. This has prompted a growing interest in the relationship between international investment law and international humanitarian law (IHL), two regimes with markedly different relationships to war—IHL more pragmatic and international investment law more idealistic. This article argues that, while its lack of pragmatism might render international investment law ineffective in changing how war is conducted, it is the regime under which States are most likely to be held liable for the conduct of war. This is a result of its more robust primary obligations, more effective enforcement mechanisms and large awards of damages. Nevertheless, comparing international investment law and IHL does also reveal some similarities—the legacy, it is argued, of a time when the laws of war were more about protecting private property and neutral commerce than civilians. Putting these two regimes together in this way exposes international law's uneven distribution of protection in war.

On 7 December 2022, the United Nations General Assembly adopted a treaty known as the Beijing Convention governing the recognition abroad of the international effects of judicial sales of ships. This article explores the rationale for a specific Convention on this issue, and its interaction with other relevant international conventions. It then analyses the recognition approach adopted by the Convention and evaluates its potential strengths and weaknesses. While some provisions might need further consideration, the overall conclusion is that the Beijing Convention has the potential to strengthen the legal certainty of the purchaser's title obtained via this sale mechanism and thus help debt recovery. Although common law jurisdictions might find it at odds with some of their features, the expected benefits from ratifying it seem to outweigh these issues and are already prompting a steady number of signatures, including those of China, the European Union and Singapore.

The United States and United Kingdom have carried out a series of strikes upon Yemeni territory since January 2024. The acting States have justified these on the basis of the right of self-defence in response to the series of attacks that have been perpetrated by the Houthi group in Yemen against various commercial and military vessels in the Red Sea. On the face of it this was a relatively straightforward justification. Yet, when subjected to analysis it becomes evident that not only is the justification itself not clear, but that the law governing the actions—the jus ad bellum—is not sufficiently settled to provide clear parameters by which to assess the legality of the strikes. Furthermore, the strikes themselves, and the purposes for which they were undertaken, may have set a precedent with unforeseeable consequences.

This article suggests a new interpretative framework for Article 27(2) of the Fourth Geneva Convention, which prohibits sexual violence against women in armed conflict. One specific aspect of this norm is particularly controversial: the notion of ‘honour’ has often been criticised as an obsolete concept linked to an outdated view of female morality. In the absence of a definition of the term, this article examines whether the gendered limitations of the norm can be overcome and the extent to which an evolutive interpretation of the concept is feasible. It argues that the concept of ‘honour’ can be treated as a generic term that is subject to evolutive interpretation, allowing for a renewed and gender-sensitive understanding to be developed, aligned with the concept of human dignity.

In 2023, the Organisation for Economic Co-operation and Development (OECD) launched an updated version of the OECD Guidelines for Multinational Enterprises on Responsible Business Conduct. The changes represent substantial and potentially far-reaching implications for business, particularly in the areas of climate change and biodiversity. This article examines the 14 climate-related complaints filed under the Guidelines prior to the adoption of the 2023 Update, showing how many of these cases illustrate the potential interlinkages between the human rights and climate change dimensions of the Guidelines. The article then discusses how the updated provisions may influence future complaints concerning climate change. Based on this analysis, the article concludes that the Guidelines could have been strengthened by the explicit integration of climate change into the scope of corporate human rights responsibilities under the Guidelines.

The Parties to the Paris Agreement have committed to communicate successive ‘nationally determined contributions’ (NDCs) to the global response to climate change. Each NDC is expected to reflect the Party's ‘highest possible ambition’ (HPA) on the mitigation of climate change. This article envisages the possibility of taking HPA seriously: that is, of approaching it as an effective legal standard. It shows that, in some circumstances, the HPA standard can help to assess whether a State has complied with due diligence obligations on climate change mitigation.

This article analyses the challenges that online marketplaces and e-commerce pose to traditional product liability doctrines. It uses a comparative perspective to examine whether an online platform can be liable to a consumer for a defective product purchased on its platform, and the adaption of product liability law to this challenge in a series of jurisdictions. It reflects on the role of litigation and regulation, focusing on Europe and the United States, and considers reform in a number of jurisdictions in this area. It concludes with proposals for increasing the accountability of online marketplaces for products sold on their websites.

The dichotomy between jurisdiction and admissibility developed in public international law has drawn much attention from arbitrators and judges in recent years. Inspired by Paulsson's ‘tribunal versus claim’ lodestar, attempts have been made to transpose the distinction from public international law to investment treaty arbitration, yielding a mixed reception from tribunals. Remarkably, a second leap of transposition has found firmer footing in commercial arbitration, culminating in the prevailing view of the common law courts in England, Singapore and Hong Kong that arbitral decisions on admissibility are non-reviewable. However, this double transposition from international law to commercial arbitration is misguided. First, admissibility is a concept peculiar to international law and not embodied in domestic arbitral statutes. Second, its importation into commercial arbitration risks undermining the fundamental notion of jurisdiction grounded upon the consent of parties. Third, the duality of ‘night and day’ postulated by Paulsson to distinguish between reviewable and non-reviewable arbitral rulings is best reserved to represent the basic dichotomy between jurisdiction and merits.

As the human right to a healthy environment is codified around the globe, some systems still lag behind. One noticeable straggler is the Council of Europe, which is currently undergoing its fourth attempt to recognize the right. This article examines the proposals tabled within this system in light of overarching debates about climate justice and environmental rights, before focusing specifically on the spatial and temporal limits of the European Convention on Human Rights (ECHR) and the institutional features of its Court. First, the article describes what the author sees as the current liminal moment in the development of human rights law, a time of transition in which established legal concepts can be questioned or reaffirmed. Second, it sketches recent proposals for locating and conceptualizing the right to a healthy environment within the Council of Europe. Evaluating different options, it makes the case for including this right in the ECHR. Third, the article discusses the right's potential to reshape the spatial and temporal limitations on legal subjectivity and Convention protections. These proposals come at a crucial time when the system's ability to protect human rights from environment-related impacts is being tested by climate litigation. The article understands these developments as interrelated and discusses whether current proposals could deliver on demands for climate justice by extending protection to future generations and for extraterritorial environmental impacts.

The Geneva Convention relative to the Protection of Civilian Persons in Time of War provides a practical and effective framework for the protection of civilians in international armed conflicts that has retained its relevance for 75 years since its adoption. As with all treaties, its ‘object and purpose’ has a concrete impact on how its terms are interpreted, giving insights into the ordinary meaning of the text and allowing the aim of the Convention to be fully realized. This article asks and answers a series of questions to elucidate the role of the object and purpose in treaty interpretation and how to identify the object and purpose of a given treaty before focusing on the specificities of international humanitarian law treaties. On that basis, it determines that the overall ‘object and purpose’ of the Convention is to protect civilians during armed conflict, including in circumstances where they are subject to permissible measures of control and security. The article then demonstrates how that ‘object and purpose’ assists with the resolution of specific, well-known interpretive dilemmas including the determination of protected status under the Convention and the application of provisions premised on the existence of a Protecting Power.

Multilateral development banks (MDBs) are international organizations subject to the law of international responsibility. Yet, the relationship between their accountability mechanisms and the International Law Commission (ILC) Articles on the Responsibility of International Organizations (ARIO) remains unclear. Understanding this relationship is essential in fully realizing the right to remedy in the development finance context. A comparative analysis of these legal frameworks clarifies that notwithstanding their different rationale, scope and functions, the two are not normatively conflicting and both serve to control public power. While the accountability mechanisms correct the ARIO's State-centric orientation by granting legal standing to project-affected people, they have their own deficiency concerning the actions they can prescribe to MDBs upon a finding of noncompliance. Highlighting that the MDBs’ mandate to ‘do no harm’ and pursue sustainable development is left unfulfilled by the accountability mechanisms’ deficient remedial function, this article identifies specific ARIO provisions to complement rather than undermine the MDBs’ accountability system. The ARIO's residual character, combined with the proposition that remedies arise not only from wrongful conduct but also from harm suffered by one party due to another's risky activities, justify this complementarity.