The next election isn't due until next year, but could take place as soon as the second half of 2018.

"Malcolm Roberts has got the reputation as a powerhouse, the empirical science man, and he's really taken it up to members of Parliament," Senator Hanson said.

The climate change sceptic and Mr Dickson, who defected from the Queensland Liberal-Nationals and lost his state seat, will resign from taxpayer-funded jobs with One Nation MPs before nominating as candidates.

Slamming Parliament's lack of integrity and accountability to voters, Senator Hanson said her party's vetting systems had been improved and would withstand scrutiny.

"The other parties might learn a thing or two from us now," she said.

"I want people who are credible, who are there for the right reasons and not with their own agendas. If I can't get people like that, I'd rather not stand any candidates at all."

Senator Hanson called on Labor MP Susan Lamb to quit Parliament over her dual UK citizenship status, and said the government should move to refer her to the High Court immediately.

Ms Lamb, who holds the marginal seat of Longman, last week tearfully recounted being abandoned by her mother as she pleaded with the government to understand why she had been unable to renounce her dual citizenship.

"I don't accept the crocodile tears," Senator Hanson said.

"It's one rule for everyone... the whole fact is you can't put yourself aside and say I should be treated differently, that's not the case and that's not the way it should be."

The court will consider the case of Labor's Katy Gallagher on March 14.