This week in parliament, the prime minister will bring on for debate laws making it easier to ban union officials who repeatedly break the law.

Labor is opposed to the legislation, which would also make it easier to deregister unions and block union mergers.

"This law reflects the Liberals' hatred of unions more than anything else," opposition frontbencher Michelle Rowland told Sky News on Sunday.

Looming large over the debate is rogue Victorian union boss John Setka.

The government argues his ongoing leadership of the CFMMEU highlights the pressing need for its tough new laws.

But Ms Rowland said the laws would not be retrospective, so would do nothing to "get rid of" Mr Setka, who has been an issue for the Labor party.

"I don't think he belongs in the Labor Party and I don't think he belongs in the union movement," she said.

Mr Setka has been suspended from the Labor Party after being accused of making disparaging remarks about anti-domestic violence campaigner Rosie Batty, and being convicted for harassing his wife.

However, he continues to lead the construction division of the CFMMEU in Victoria.

Meanwhile, Labor is calling on the prime minister to take action against a Perth builder penalised for blocking union officials from entering a worksite.

Gerry Hanssen, a Liberal Party member, was fined more than $62,000 for breaking industrial laws.

Labor's industrial relations spokesman Tony Burke said the prime minister should kick him out of the Liberal Party.

"Or is he too gutless to stand up to this character?" Mr Burke said.

"A judge said Mr Hanssen was driven by a blind hatred of unions. Well, so are Scott Morrison's Liberals."

Australian Associated Press