7. (1) The Minister may appoint a person to act as Registrar-General—
(a) during a vacancy in the office of Registrar-General, whether or not an appointment has previously been made to the office; or
(b) during any period, or during all periods, when the Registrar-General is absent from duty or from the Territory or is, for any other reason, unable to perform the functions of the office;
but a person appointed to act during a vacancy shall not continue to so act for more than 12 months.
(2) A person is not eligible for appointment under this section unless the person is a public servant.
(3) If a person appointed as acting Registrar-General ceases to be a public servant, the person ceases to hold office as acting Registrar-General.
(4) Anything done by or in relation to a person purporting to act under an appointment made under this section is not invalid on the ground that—
(a) the occasion for the appointment had not arisen;
(b) there was a defect or irregularity in connection with the appointment;
(c) the appointment had ceased to have effect; or
(d) the occasion to act had not arisen or had ceased.