Supreme Court Rules 2000

If a person under disability is a party to a proceeding, service may be effected on any of the following persons:if a person is authorised under the Guardianship and Administration Act 1995 to conduct in the name and on behalf of the person under disability the proceedings in connection with which the service is required to be made, the person so authorised; if no person is so authorised and the person under disability is an infant, a parent or guardian or, if the infant has no parent or guardian, the person with whom the infant resides or who has the care of the infant; in any other case, the person with whom the person under disability resides or who has the care of the person under disability.

Notwithstanding subrule (1), the Court or a judge may order – that service made, or to be made, personally on a person under disability is good service; or that service be made personally on a person under disability if the person is not an infant.