The letter, which was written on December 22, is addressed to governor-general Sir Peter Cosgrove as representative of "Her Majesty Elizabeth the Second Our Sovereign Lady the Queen". It was also emailed to the Queen, Culleton's office told BuzzFeed News.

In it, Culleton claims the last 12 years of rulings by the High Court of Australia are "void" because court writs haven't been made in the Queen's name.

He claims there is discrepancy between Section 33 of the High Court Act 1979, which says all process shall be issued in the name of the Queen, and the High Court Rules 2004.

Culleton originally pointed out the inconsistency to attorney-general George Brandis during his inaugural Question Time appearance in September. Brandis has referred it to the High Court for amendment.

