The Northern Territory Coroner is expected to recommend criminal charges be laid against three asylum seekers when he hands down his findings into the SIEV 36 explosion.
The three Afghani men have been accused of deliberately setting fire to the boat they were aboard, resulting in the death of five men.
Three man drowned after being blown off an asylum seeker boat, known as Suspected Illegal Entry Vessel 36, when it exploded near Ashmore Reef in April last year.
Two bodies were never recovered, but they too were presumed drowned.
A further 40 asylum seekers who were on board the boat suffered serious burns.
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A coronial inquest into the incident began on January 25 this year.
NT Coroner Greg Cavanagh is due to hand down his findings and make recommendations on Wednesday.
When the hearing closed on February 18, Mr Cavanagh indicated he may consider referring the matter to police.
"Should I form the belief that a crime was committed, I think I should," he said.
Most of the people injured in the explosion have since been granted visas in Australia.
It is understood any asylum seeker found to have committed a crime will have their visa revoked.
Evidence heard during the four-week inquest revealed stories of survival and bravery, but questions were also raised about the actions of Australian Defence Force personnel involved in the incident.
Counsel assisting the coroner, Stephen Walsh QC, told the inquest that the coroner could be satisfied the lessons of SIEV 36 had been learnt and action taken following an internal Australia Defence Force review.
"There is little further required by you by way of recommendation to address the problems that arose on April 15 and 16, 2009," he said.
