Philippe Sands is a British and French writer and lawyer. He is a Professor of Law and Director of the Centre on International Courts and Tribunals at University College London. He also wrote the bestsellers East West Street: On the Origins of Genocide and Crimes against Humanity (2016) and The Ratline: Love, Lies and Justice on the Trail of a Nazi Fugitive. His latest book is The Last Colony: A Tale of Exile, Justice and Britain's Colonial Legacy. Volodymyr Yermolenko, Ukrainian philosopher and chief editor of UkraineWorld, spoke to Philippe Sands in Lviv, during the Lviv Book Forum, about the origins of concepts of genocide and crimes against humanity, the key role of Lviv in their origins, and about the future of international law. The conversation took place two days before Russia’s massive round of missile strikes on Ukrainian cities in October. UkraineWorld is brought to you by Internews Ukraine, one of the oldest Ukrainian media NGOs. Support us at patreon.com/ukraineworld.