Karim A. A. Khan QC (born 1970) is a British lawyer and a specialist in international criminal law and international human rights law. Following his appointment by United Nations Secretary-General António Guterres, he is currently an Assistant Secretary-General of the United Nations and serves as the Special Adviser and Head of the UN Investigative Team for the Promotion of Accountability for Crimes Committed by Da'esh/ISIL in Iraq (UNITAD), which was established pursuant to Security Council Resolution 2379 (2017) to support domestic efforts to hold ISIL (Da'esh) accountable for acts that may amount to war crimes, genocide, and crimes against humanity in Iraq.[1]