To ask Her Majesty's Government, further to the Written Answer by Baroness Sugg on 17 July (HL6542), what has been the total cost to the public purse of the UK’s participation in recent proceedings before the International Court of Justice on the legal consequences of the separation of the Chagos Archipelago from Mauritius in 1965.
These advisory proceedings in the International Court of Justice concerned a request for an advisory opinion from the United Nations General Assembly. All Member States of the United Nations were invited to participate in the proceedings. Thirty-one States and the African Union filed written statements, and ten States and the African Union filed written comments on the written statements. Twenty‑two States and the African Union participated in the oral proceedings, which took place in September 2018. The UK participated at all stages of the proceedings. The ICJ handed down its advisory opinion in February 2019.