Matrix Chambers

Members of Matrix Chambers are active across the whole range of public international law including investment treaty claims, state-versus-state disputes as well as cases before the ICJ and are frequently called upon to advise on international legal issues arising in the UK litigation context. The set was bolstered in March 2023 with Blinne Ní Ghrálaigh KC taking silk. On the junior end, Toby Fisher joined in September 2022 from an in-house role in the New Zealand government – he was instructed to act on behalf of New Zealand to intervene in the ICJ proceedings brought by Ukraine against Russia under the Genocide Convention. In a high-profile ICJ case concerning the status and location of the land boundary between Venezuela and Guyana, Edward Craven represented Guyana in its high-profile ICJ dispute with the government of Venezuela, which claims more than half of Guyana’s territory by rejecting an 1899 arbitral award. Michelle Butler, led by Antony White KC, is instructed by the Kingdom of Saudi Arabia to contest jurisdiction in the claim of Ghanem Al-Masarir, represented by Richard Hermer KC, on the basis of sovereign immunity – the Saudi dissident claims damages in the London courts for the alleged hacking of his mobile phone using Pegasus spyware.