Philippe Sands QC is Professor of Law at University College London and a practising barrister at Matrix Chambers. He appears as counsel before international courts and tribunals, and sits as an international arbitrator. He is author of Lawless World (2005) and Torture Team (2008) and numerous academic books on international law, and has contributed to the New York Review of Books, Vanity Fair, the Financial Times, The Guardian and the New York Times. His latest books are East West Street: On the Origins of Crimes Against Humanity and Genocide (2016) (awarded the 2016 Baillie Gifford Prize, the 2017 British Book Awards Non-Fiction Book of the Year, and the 2018 Prix Montaigne) and The Ratline: Love, Lies and Justice on the Trail of a Nazi Fugitive (2020), also available as a BBC podcast. Philippe is President of English PEN and a member of the Board of the Hay Festival of Arts and Literature.