The 1981 High Court case brought by the group Defence of Government Schools (DOGS) tested the validity of State Aid to religious schools against Section 116 of the Australian Constitution. The DOGS argued that state funding of religious schools was unconstitutional. Though the court ruled that state funding of religious schools did not contravene the Constitution, this was an important milestone in the ongoing debate about state funding of religious schools.
The ABC has produced a 30-minute podcast on the case, with interviews of some of the key players. Well worth a listen!