A Defence and Customs Review has found Australian ships inadvertently breached Indonesian territorial waters six times.
The breaches occurred between December last year and January and went against Australian government policy and operational instructions for Operation Sovereign Borders.
The review found each incursion was accidental and arose from incorrect calculation of the boundaries of Indonesian waters rather than as a deliberate action or navigational error.
"On each occasion the incursion was inadvertent, in that each arose from incorrect calculation of the boundaries of Indonesian waters rather than as a deliberate action or navigational error," the review says.
It examined all patrols conducted by Navy and Customs vessels on Operation Sovereign Borders between December 1 and January 20.
Australia has apologised to Indonesia for the unintentional incursions.
Immigration Minister Scott Morrison says the review has identified the errors and he is confident the naval incursions won't happen again.
"One [issue] was how the territorial waters were measured from the coastline rather than from the baseline," he told the ABC. "There was [also] an issue in terms of some of the geographic information that was available to those at the time being provided. And thirdly in the post-operation period, that the places where people were hadn't been identified. Now all of these things have been addressed and we've ensured that in terms of future operations that those types of errors won't reoccur."
The Opposition has called for the full report to be made public. Minister Morrison says that decision is up to Customs and Defence.
"It is not for me to make that call," he said.
Mr Morrison disputed comments made by an Indonesian Navy spokesperson that with modern technology the incursions could not have been an accident.
"The findings of the report completely contradict those comments," Minister Morrison said.
Read the full report below:
