An Act to facilitate compliance by Australia with obligations under the Rome Statute of the International Criminal Court, and for related purposes
Part 2—General provisions relating to requests by the ICC for cooperation
8 How requests for cooperation are to be made
(1) Subject to section 9, a request for cooperation is to be made in writing:
to the Attorney-General through the diplomatic channel; or
through the International Criminal Police Organisation or any other appropriate regional organisation.
(2) If a request for cooperation is sent to, or received by, a person to whom the Attorney-General has delegated a power to deal with the request, the request is taken for the purposes of this Act to have been sent to, or received by, the Attorney-General.
EDIT.