Federal police are not investigating Wyatt Roy's unofficial visit to an Iraqi war zone.
The former Liberal MP was caught in the crossfire between the Islamic State group and Kurdish Peshmerga forces near an area Australians are legally banned from visiting.
Australian Federal Police Commissioner Andrew Colvin said his organisation had done "due diligence" into the matter but there was no open investigation.
"Based on the public reporting we did form a conclusion that we didn't believe any offences had been committed," he said.
Mr Roy's trip was widely condemned by federal politicians including Prime Minister Malcolm Turnbull.
