Pauline Hanson wants laws stripping dual-national terrorists of their citizenship to go further, calling for their families to be deported as well.
A dual-national terrorist is set to become the first to be stripped of citizenship after the controversial laws cleared federal parliament last year but an immediate High Court challenge is expected, News Corp Australia reported on Monday.
The One Nation leader says the immediate family of anyone stripped of their citizenship should be deported as well.
"It has to be a real deterrent to get these people out of the country," she told the Seven Network.
"I don't want them here."
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Senator Hanson said anyone wanting to become an Australian citizen should have to wait at least seven years instead of four.
If they then commit a criminal offence punishable by more than 12 months' jail, they should be deported, she said.
Fellow Senate crossbencher Derryn Hinch said the laws could stand up to a High Court challenge.
As a migrant he felt anyone who became a citizen should get all the rights and responsibilities of a person born in Australia and not be deported but that didn't apply to dual-citizens.
"If you have a split personality, you should be able to be deported and sent back to your country of origin," he said.
"I think this could stick."
Greens immigration spokesman Nick McKim said there was plenty of legal opinion to support a High Court challenge.
Evidence to a parliamentary inquiry that Solicitor-General Justin Gleeson wasn't asked to advise on the final version of the citizenship laws suggested the government had its doubts too, he said.
"They did not want to ask the second law officer of Australia whether in fact these laws may survive a High Court challenge," he told reporters in Canberra.
"That suggests that the government is not confident that these laws would survive a constitutional challenge."
