An Act to facilitate compliance by Australia with obligations under the Rome Statute of the International Criminal Court, and for related purposes
Part 3 Requests by the ICC for arrest and surrender of persons
Division 3—Arrest of persons
23 Remand
(1) If a person is arrested under a warrant issued under section 20 or 21, the person executing the warrant must, as soon as practicable after the arrest:
specifies the crime within the jurisdiction of the ICC in respect of which the warrant was issued; and
describes the conduct that is alleged to constitute that crime;
Rights during investigation - informed of belief that crime has been committed
EDIT.