(1) Where, within five years after he becomes an employee, a person to whom this Part applies dies or is retired on the ground of invalidity or of physical or mental incapacity to perform his duties, any pension payable to or in respect of that person under this Act shall be paid from the Fund, and the Commonwealth shall pay to the Fund the amount by which the proportion of the pension equivalent to the contributions made by or in respect of the person is less than the amount of the pension.
(2) This section does not have effect on and after 1 July 1976.