Australian Federal Police are yet to interview the two Indonesian crew members who were among the survivors of last week's asylum seeker boat disaster.
The boat was carrying about 200 asylum seekers when it capsized north of Christmas Island last Thursday.
A total of 110 men were rescued, including eight unaccompanied minors.
While four remain in hospital in Perth, most survivors have been transferred to a high-security detention centre where they have been interviewed by state and federal police about the disaster.
The two Indonesian crew members are now being held in a separate facility.
It is understood they will be interviewed in the coming days as part of a criminal investigation.
Seventeen bodies have been recovered and are being stored in a makeshift morgue on the island while about 70 people remain unaccounted for.
Deputy Commissioner Chris Dawson says it is likely to take at least two weeks to identify the dead.
"Dealing with tragedy and a major loss of life is not easy for any individual to deal with," he said.
A mental health team has also been sent to Christmas Island to help rescuers deal with the aftermath of the disaster.
Home Affairs Minister Jason Clare says the search and rescue team put their own lives at risk to try to save others.
"Over the last few days they have seen some truly horrifying things. They have responded with remarkable work," he said.
The tragedy has reignited political debate around asylum seeker policy.
But there are no signs of a policy compromise, despite Prime Minister Julia Gillard saying she is open to more talks.
"I am willing to keep talking to the Opposition and across the Parliament so that we put the politics to one side and we work together to address the fact that people are risking their lives in these very dangerous journeys," she told ABC News 24 yesterday.
"We thought if we put the two together, everybody could come together and support it. That is still on the table to be accepted."
The Government says its up to the Opposition to make the next move.
The Opposition has so far refused to negotiate with the Government, arguing Labor's plan to send asylum seekers to Malaysia is an "abominable" policy that they will not support.
But a multi-party group of backbenchers including Labor's Steve Georganas is calling for compromise.
"As backbenchers if we can bring people together and take the politics out of this issue, then I think that's a positive," he said.
Opposition Immigration spokesman Scott Morrison says the Coalition's policies will stop asylum seekers arriving by boat.
But he says they would not be effective if the Government adopted them.
"They have very little credibility, if any, to deliver anything," he said.
Some Coalition MPs plan to call for an end to the bickering over asylum seekers in their party room meeting today.
Meanwhile the Federal Government is launching an internal review into the response of its agencies to the tragedy.
The review will cover Customs, Border Protection, Defence and the Australian Maritime Safety Authority.