PORT MORESBY: Papua New Guinea's political future now rests in the court that sparked a week of crisis.
The rival camps of Peter O'Neill and Sir Michael Somare still claim their man as prime minister presiding over a legitimate government.
Mr O'Neill has a groundswell of popular support and 74 MPs backing him and his government.
But Sir Michael, 75, known as the ''father of the nation'', is relying on last Monday's 3-2 Supreme Court ruling reinstating him as prime minister on the grounds that Mr O'Neill's August 2 ascendancy was unconstitutional.
This latest attempt to seize power involves Mr O'Neill using the ''slip rule'' option, which allows Supreme Court rulings to be revisited in ''exceptional cases''.
''It was filed on Thursday and we will be in court on Monday to discuss potentially a seven-man bench rather than the previous five-man bench,'' an adviser to Mr O'Neill said.
Mr O'Neill is also applying for a restraining order to prevent Sir Michael performing government duties. ''It's still a stalemate, PNG has double of everything, but hopefully the courts can read the public mood.''
Power has all but slipped from Sir Michael, who failed in a desperate early morning bid on Friday to recruit the Defence Force after his choice for police commissioner, Fred Yakasa, could not provide the muscle needed to break the deadlock with Mr O'Neill.