Penelope Nevill appears in the Supreme Court case R (Appellant) v Secretary of State for Foreign and Commonwealth Affairs (Respondent). The appellant is Chair of the Chagos Refugees Group, a group which represents the former inhabitants of the Chagos Archipelago who were removed between 1968 and 1973 and prevented from returning by the United Kingdom Government.

This case is on appeal from the Court of Appeal, the issues being raised include:

i) whether the Court of Appeal should have held that evidence wrongly held to be inadmissible by the court below (the "Wikileaks cable") could and would have led to the conclusion that the decision of the respondent to create a marine protected area in the British Indian Ocean Territory was motivated by an improper purpose;

ii) whether the Court of Appeal erred in finding that the Secretary of State was not personally motivated by the alleged improper purpose and relying on that fact to conclude that the decision of the court below on admissibility would have made no difference; and

iii) (in an argument raised by the respondent) whether the Court of Appeal erred in ruling that the Wikileaks cable was admissible in evidence. The Court must also determine whether the appellant has permission to adduce new evidence that was not available to the courts below in support of its grounds.

Further details on this case, including the judgment from the Court of Appeal, can be found on the Supreme Court website.