This essay addresses the question of how the international community could designate high seas marine protected areas (MPAs) that would be binding on all states. This is a key issue for the forthcoming UN negotiations of an International Legally Binding Instrument (ILBI) on conservation and sustainable use of biodiversity in areas beyond national jurisdiction. However, this is a longstanding question, the importance of which transcends the ILBI negotiations. Some have argued for the establishment of a centralized Ocean Governance Authority, whose decisions would be universally binding; others have argued that existing regional and sectoral bodies can be relied on to protect biodiversity in areas beyond national jurisdiction. The experience of the Sargasso Sea project is that some sort of centralized or coordinating regime is needed to make MPAs effective across regional and sectoral bodies.

As a teacher of international law for more years than I care to admit, I have to declare at the start of my comments that I admire the South China Sea Arbitration Award greatly. It presents an interpretation of the provisions of the 1982 UN Convention on the Law of the Sea (UNCLOS) on islands and rocks in a comprehensive, carefully considered and intellectually satisfying way. As my colleagues will doubtless point out, it does present problems relating to current existing state practice, but it does to my mind capture what the UNCLOS III drafters had in mind when the 1982 Convention text was put together.

Some people with obsessive–compulsive disorder (OCD) experience recurrent intrusive sexual, aggressive or death-related thoughts and as a result may be subjected to lengthy or inappropriate risk assessments. These apparent ‘primary’ risks can be dealt with relatively easily through a careful understanding of the disorder's phenomenology. However, there are other, less obvious ‘secondary’ risks, which require more careful consideration. This article discusses the differentiation of intrusive thoughts and urges in people with OCD from those experienced by sexual or violent offenders; assessing the risk of self-harm and suicide; discussing the nature of repugnant obsessions with a patient; assessing risk of harm and violence to the dependents and family living with someone with the disorder; and assessing the lack of insight and the use of the Mental Health Act. Issues specifically related to children and young people with OCD are also highlighted.