Flint v Commonwealth

Arthur Loftus Sylvester Flint (the plaintiff) commenced an action in the High Court of Australia against the Commonwealth of Australia (the defendant). The plaintiff sought payment of a sum representing the difference between the superannuation allowance he had been paid and the amount he claimed was due, as well as a declaration that he was entitled to a higher annual superannuation allowance. The dispute arose from the reduction of the plaintiff's pension following the transfer of his public service department from the State of Victoria to the Commonwealth.

The central legal issue before the High Court was the interpretation of section 84 of the Australian Constitution, specifically whether it preserved the pension rights of officers transferred from State service to Commonwealth service, and if so, whether those rights could be subsequently reduced by Commonwealth or State legislation. The plaintiff contended that section 84 guaranteed his pension entitlement based on the law of Victoria at the time of his retirement, irrespective of subsequent legislative changes. The defendant argued that the plaintiff's pension rights, if he had continued in State service, remained subject to alteration by the Victorian Parliament, and that Commonwealth legislation also permitted a reduction.

The High Court, in allowing the plaintiff's demurrer, held that section 84 of the Constitution confers a constitutional right on transferred officers to a pension or retiring allowance calculated according to the law of the State as if their service with the Commonwealth had been a continuation of their service with the State. This right, once established, is a fixed entitlement that cannot be diminished by subsequent Commonwealth or State legislation. The Court reasoned that section 84 effectively crystallises the officer's pension rights at the point of transfer, making them immune from legislative reduction. Consequently, the plaintiff was entitled to the pension amount calculated under the Victorian law applicable at his retirement, without reduction. The demurrer was allowed with costs, and judgment was entered for the plaintiff as sought in the action.