Schedule 1—Amendment of the Criminal Code Act 1995
Chapter 8—Offences against humanity and related offences
Division 268—Genocide, crimes against humanity, war crimes and crimes against the administration of the justice of the International Criminal Court
Subdivision J—Crimes against the administration of the justice of the International Criminal Court
268.108 Preventing witnesses or interpreters
(1) A person commits an offence if the person, by his or her conduct, intentionally prevents another person from attending as a witness or interpreter at a proceeding before the International Criminal Court.
Penalty: Imprisonment for 5 years.
National penalties - offences against the administration of justice
National penalties - maximum penalty
EDIT.