Environment – Protection. In 2010, the respondent Secretary of State for Foreign and Commonwealth Affairs had established a 'no take' marine protected area in the British Indian Overseas Territory, which had brought to an end all commercial fishing, including that carried on by Chagossians as owners and crew of Mauritian registered fishing vessels. The appellant, the chair of the Chagos Refugees Group, had appealed against the decision by the Court of Appeal, Civil Division, that, among other things, the Secretary of State's decision had not been motivated by the improper purpose of preventing future resettlement of the islands. In dismissing the appellant's appeal, the Supreme Court held that there was no basis on which it would be justified in reaching a different conclusion to that reached by the Court of Appeal.