The court first sat for the Pitcairn sexual assault trial of 2004, and its powers were further elaborated on in the Constitution Order 2010.

[6] Judges are appointed by the Governor of the Pitcairn Islands under instruction from King Charles III.

The tribunal's first decision was whether to accept the defence claim that the Pitcairn Islands were not in fact legally British territory and had not been such since at least the time that the original settlers, the mutineers of the Bounty, burned the vessel in a symbolic (and, from the defence viewpoint, actual) rejection of further British sovereignty and rule.

The Supreme Court ruled that the Pitcairns were in fact British territory and were generally internationally recognised to be such and that the trial was thus legal.

The Court later (October 23) found the defendants to be guilty of the sexual offences alleged against them, which created turmoil as the defendants included the islands' mayor, Steve Christian, direct descendant of leading Bounty mutineer Fletcher Christian.