Chapter 16. Genocide, crimes against humanity and war crimes
Section 102. Crimes against humanity
Any person is liable to punishment for a crime against humanity who, as part of a widespread or systematic attack directed against any civilian population,
(b) exterminates a population in whole or in part, including by inflicting on it or parts of it conditions of life calculated to bring about the destruction of the population in whole or in part,
Extermination - crimes against humanity
EDIT.