One Nation has preselected a former Hells Angel bikie to contest the seat of Logan in the upcoming Queensland state election.
Scott Bannan, who was also a former world kickboxing champion, was a member of the outlaw motorcycle club 10 years ago.
The Queensland leader of Pauline Hanson's One Nation, Steve Dickson, told ABC radio Mr Bannan had been upfront about his history.
"He's one of those top blokes and he came clean straight away," Mr Dickson said.
"He's never been charged with anything. The guy's as straight as the days come."
Mr Dickson said he had confidence in the "family man", who had "huge businesses" in the Logan area.
"I think the Labor candidate is absolutely terrified he's running," Mr Dickson said.
Mr Dickson told Fairfax Media Mr Bannan's Hells Angels membership was "old news".
"Thorough background checks are conducted on all candidates to ensure they have no criminal record," he said in a statement.
"Scott is an upstanding member of his community. He is family man who runs a successful local business and he would make an outstanding representative for the people of Logan."
Mr Bannan was announced as the One Nation candidate for Logan in June.
He told Fairfax Media's Jimboomba Times his lack of political experience was a boon for locals.
"The fact is I'm from the real world, I'm not a career politician, I've had to juggle bills, support my family with my bare hands," he said.
Speaking about his year-long membership in the Hells Angels, Mr Bannan said he was not concerned it would affect his chances at the polls.
"I understand that some think just because you were in a club you're a criminal; I have no criminal record and zero criminal history," he said.
"I've been warned about how nasty the other two main parties get digging up anything they can find, my mates are all having bets on what headlines they can come up with, but I'm a big boy, I can handle it."
When asked about Mr Bannan's bikie link, Premier Annastacia Palaszczuk said voters would probably disapprove.
"You'd have to ask them (One Nation) but I don't think the public down there would find that acceptable," she said.
Opposition leader Tim Nicholls said voters should not vote for any One Nation candidate.
"I'll leave that up to the voters of Logan," he said.
"I'll simply say in relation to One Nation, if you vote for One Nation you're simply going to get a Labor party government that is going to do nothing for the next three years all over again."
Compulsory preferential voting will be in place at the next state election and there has been no indication One Nation will direct preferences to the Labor government.
- with AAP