On June 19, 2023, the Intergovernmental Conference on an international legally binding instrument under the United Nations Convention on the Law of the Sea on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (BBNJ Intergovernmental Conference) adopted, by consensus, the Agreement under the United Nations Convention on the Law of the Sea on the Conservation and Sustainable Use of Marine BioLogical Diversity of Areas Beyond National Jurisdiction (BBNJ Agreement or Agreement). The Agreement, which is grounded in and builds on the UN Convention on the Law of the Sea (UNCLOS), specifically addresses issues relating to the conservation and sustainable use of the marine biodiversity of the high seas. The adoption of the Agreement was the culmination of nearly two decades of work under the auspices of the UN General Assembly.

Over the course of the period from the end of 2022 to early 2023, requests for advisory opinions on climate change were, for the first time, made to the International Court of Justice (ICJ), the International Tribunal for the Law of the Sea (ITLOS), and the Inter-American Court of Human Rights (IACtHR).

Under Article 41 of the UN Charter, the Security Council has established 31 sanctions regimes since 1966. Sanctions measures encompass a broad range of enforcement actions not involving the use of armed force. The measures have ranged from comprehensive economic and trade sanctions to more targeted measures such as arms embargoes, travel bans, and financial or commodity restrictions. In recent years, there have been increasing numbers of complaints from humanitarian organizations that sanctions cause or exacerbate humanitarian crises. The UN Office for the Coordination of Humanitarian Affairs (OCHA) has estimated that at least 222 million people were experiencing acute food insecurity at the end of 2022, the largest global food crisis in modern history. At the same time, the countries that need the most assistance are often subject to international sanctions regimes. As of March 2023, UN sanctions applied in nine of the top ten operations of the International Committee of the Red Cross.

The United Nations General Assembly adopted the United Nations Convention on the International Effects of Judicial Sales of Ships at its 47th plenary meeting on December 7, 2022 (the Convention). Known as the “Beijing Convention on the Judicial Sale of Ships,” the Convention opened for signature at a ceremony held in Beijing, PRC, on September 5, 2023. By its terms, the Convention will enter into force 180 days after the date that it is ratified, accepted, approved, or otherwise acceded to by at least three states. With strong backing from the maritime community, it is expected that the Convention will enter into force by 2024.

In two cases decided on October 18, 2022, the European Court of Human Rights issued judgments for the first time in complaints alleging racial profiling in police identity checks. The applicants in both cases alleged that the police had selected them for a check due to racial discrimination, and both argued that the state had failed to conduct an effective investigation in response to their complaints. In one case, a unanimous court found a violation of the European Convention on Human Rights, but in the other case, a sharply divided court decided 4–3 that there was no violation. The cases raise serious questions about proof and evidence in racial profiling cases, as well as what policies and procedures would meet the state obligation to ensure an adequate legal framework to protect against racial discrimination.

On November 16, 2023, the International Court of Justice voted 13 – 2 in favor of issuing a binding Order in the case of Canada and the Netherlands v. Syrian Arab Republic. The Order adopted two provisional measures, which require Syria to prevent acts of torture and other cruel punishment, ensure that its officials and organizations do not commit torture or other cruel punishments, and preserve any evidence related to the allegations of the case. A Request for the Indication of Provisional Measures seeking such an order had been entered on June 8, 2023, by Canada and the Netherlands, for which oral arguments were held on October 10, 2023. The Request came alongside Canada's and the Netherlands' Joint Application instituting proceedings against Syria for violations of the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment. The Request and Application were made pursuant to Articles 36 and 41 of the Statute of the Court, Article 30 of the Convention against Torture, and Articles 73, 74, and 75 of the Rules of the Court. Vice-President Gevorgian and Judge Xue voted against both provisional measures, with Vice-President Gevorgian appending a dissenting opinion and Judge Xue appending a declaration.