From the Archives, 1951: PM unbowed as High Court holds âRed Billâ invalid Weâre sorry, this service is currently unavailable. Please try again later. Dismiss From the Archives, 1951: PM unbowed as High Court holds âRed Billâ invalid 70 years ago, the High Court held that the Federal Parliamentâs attempt to ban the Communist Party of Australia was unconstitutional. But this was not the end of the fight, declared Robert Menzies. By Staff reporter Save Normal text size ANTI-RED ACT HELD INVALID Menzies: Not End Of Fight The Full Court of the High Court held yesterday that the Communist Party Dissolution Act was invalid.