[2] Verdirame conducted empirical research on international organisations and refugee protection, which formed the basis of a series of articles and the book "Rights in Exile: Janus-faced Humanitarianism",[3] which he co-authored with Barbara Harrell-Bond, an anthropologist whose "Imposing Aid" (1986) was a pioneering critique of international institutions and humanitarianism.
[7] He is the author, with Oxford philosopher John Tasioulas, of the entry on international law in the Stanford Encyclopedia of Philosophy.
[8] Verdirame was counsel for the UK Government in Miller v. Secretary of State for Exiting the European Union (2017) 'the Article 50 case' at the Supreme Court, and at the International Court of Justice [Obligations concerning Negotiations relating to Cessation of the Nuclear Arms Race and to Nuclear Disarmament (Marshall Islands v. United Kingdom)], and for the Italian Republic in the Enrica Lexie case about the detention of two Italian marines by India following an incident where two Indian fishermen were killed off the coast of Kerala.
[10] It was reported in March 2022 that Verdirame represented Ukraine against Russia in the European Court of Human Rights in a case filed in response to the Russian invasion.
[12] He also co-authored a proposal with Sir Richard Aikens and Professor George Yarrow for Britain to remain in the European Economic Area while a long-term arrangement was negotiated.