Papua New Guinea's National Court has dismissed a challenge to the legality of an arrest warrant issued for prime minister Peter O'Neill in 2014.
Anti-fraud police have been investigating Mr O'Neill over alleged illegal state payments to a lawfirm.
The court dismissed the challenge as an abuse of court process, saying the criminal process must proceed in a reasonable time frame.
The warrant was originally sought by the head of the fraud squad, Mathew Damaru, who says Mr O'Neil's lawyers have obstructed the judicial process by mounting various legal challenges to the warrant.
He told Johnny Blades that the police commissioner Gary Baki should now execute the warrant, and he has urged the prime minister to take the opportunity to clear his name.
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The Papua New Guinea Prime Minister Peter O'Neill. Photo: AFP / Peter Parks