A group of 34 women and children with ties to former Islamic State fighters have been seeking a return to Australia after being held in a Syrian camp since the militant group's defeat.
While one has been given a two-year temporary exclusion order barring their return, other members of the so-called "ISIS bride" cohort have been granted Australian passports as they are citizens.
The federal government has ruled out any efforts to repatriate the group.
Opposition home affairs spokesman Jonathon Duniam said conditions imposed on previous citizens with links to Islamic State would not be adequate for the current cohort.
In 2022, four women and 11 children were returned to Australia, while eight orphaned children were repatriated from Syria in 2019 under the then-coalition government.
"Bringing people back into Australia with a softly, softly approach, which is the one this government is taking, is not in our national interest," Senator Duniam said on Sunday.
"With those who have been repatriated, who have faced prosecution in the past, the best we got was a good-behaviour bond for 25 months.
"These are people that went to Syria to support a death cult. A good-behaviour bond does not strike me as a strong response or something that will keep people safe."
The coalition has called for laws to be strengthened to stop the cohort from accessing Australian passports.
Home Affairs Minister Tony Burke said intelligence agencies were monitoring any potential risks the group posed to Australia.
"We know the different individuals, we know the state of mind and effective ideology of different individuals," he said.
"Our agencies have been following them for a long time."
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