Part 4—Other requests by ICC
Division 8—Facilitating the voluntary appearance of persons (other than prisoners) as witnesses or experts before the ICC
73 Persons (other than prisoners) assisting investigation or giving evidence
(1) This section applies if:
(a) the ICC requests assistance in facilitating the voluntary appearance of a person as a witness or expert before the ICC; and
(b) the Attorney General is satisfied that:
(i) the request relates to an investigation being conducted by the Prosecutor or a proceeding before the ICC; and
(ii) the person’s appearance is requested so that the person can assist the investigation or give evidence at the proceeding; and
(iii) the person is in Australia and is not a prisoner; and
(iv) the person has consented in writing to assisting the investigation or giving evidence at the proceeding.
(2) The Attorney General is to execute the request by making arrangements for the travel of the person to the ICC.
Facilitating voluntary appearance of persons
Facilitating voluntary appearance of persons - authority - ICC proceedings
Facilitating voluntary appearance of persons - national procedures for ICC proceedings
EDIT.