Marc Henzelin joined LALIVE in 2001 and is a partner of the firm. He has vast experience in transnational and domestic litigation, and in particular in international and economic criminal law, regularly leading private investigations, focusing on asset search, recovery and compliance issues. He also has broad experience in commercial and banking litigation, mutual legal assistance in criminal matters and extradition, as well as public international law. 

Marc Henzelin has been a judge at the Court of Cassation of Geneva since 2009 and was prior to that an acting judge in the criminal and commercial sections of the Geneva Court of Appeals (2002–2009). He is a member of numerous professional associations, including the Business Crime section of the International Bar Association (co-chair 2010–2012); the Advisory Board of the European Criminal Bar Association (ECBA) since 2007, and the Anti-corruption Commission of the International Chamber of Commerce (ICC).

Marc Henzelin is ranked among the world’s best investigations and business crime defence lawyers by the leading legal directories. 

He is on the editorial board of the New Journal of European Criminal Law (previously, Journal of European Criminal Law, NJECL) and of the Global Investigations Review (GIR) and has published and lectured extensively in international and economic criminal law, mutual legal assistance in criminal matters, litigation and public international law. Since 1995, he has held various academic positions at universities in Switzerland (including Geneva) and abroad (Torino, Hong Kong, Paris, etc.).

Before joining LALIVE, Marc Henzelin practised law in Lausanne and Geneva and, before then, acted as a legal adviser and deputy head of mission for the International Committee of the Red Cross in Mozambique (1987–1988), in Israel, Lebanon, Occupied Territories and South Africa (1987–1992).