(1) The Chief Justice, the Justices of Appeal and the Puisne Judges shall be paid the salaries specified in schedule 3 to this Order, and shall be entitled to such allowances and shall have such terms and conditions of office as may from time to time be determined by the Judicial and Legal Services Commission with the concurrence of the Premiers of all the States:
Provided that—
(a) the salaries specified in schedule 3 to this Order may be altered by order made by the Judicial and Legal Services Commission with the concurrence of the Premiers of all the States;
(b) the salary and allowances (other than allowances which are not taken into account in the computation of pensions) of a judge shall not be reduced and the terms and conditions of office applicable to a judge upon his or her appointment shall not be made less favourable to him or her during the currency of that appointment.
(2) Where a judge is entitled to exercise an option in relation to his or her salary or the other matters referred to in proviso (b) to subsection (1) of this section, the option as exercised by him or her shall be deemed for the purposes of that proviso to be in his or her favour.