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A car has crashed into federal Labor MP Terri Butler's electorate office as the campaign heats up in the south Brisbane seat.

The vehicle ploughed into the front of the Griffith MP's office on Old Cleveland Rd, Greenslopes, just after 1pm on Thursday.

The crash broke the front door frames and shattered windows, leaving glass fragments scattered over the carpet inside the office.

The car was driven off and the driver is yet to be found.

"Thanks for your concern, everyone," Ms Butler tweeted.

"We don't know the condition or whereabouts of the driver."

Police are investigating whether the crash was deliberate or not.

Labor leader Anthony Albanese, on the campaign trail in NSW, said he had spoken to Ms Butler and the circumstances of the crash were still unclear.

"It's good news though, that no one of Terri's staff or indeed anyone who is in the vicinity of what is a very busy precinct has been hurt," he told reporters on Thursday.

Greens candidate for Griffith Max Chandler-Mather said the incident sounded awful and he hoped everyone was OK.

The crash came hours after the Greens released polling indicating Ms Butler may be battling to hold her seat.

The door-to-door polling of 25,000 voters indicates a 7.2 per cent swing to the party in Griffith.

That would put Mr Chandler-Mather just above the 31 per cent primary vote Ms Butler won in 2019.

Greens door-to-door polling has previously predicted the party picking up a Brisbane council ward and two state electorates.

Mr Chandler-Mather said a swing would be the result of his party's biggest and most comprehensive grassroots campaign for a lower house seat.

The Greens are preparing for a stoush with the Brisbane City Council over its restrictions on election yard signs, which the party says denies residents freedom of expression.

Brisbane Lord Mayor Adrian Schrinner, a Liberal National Party member, passed laws last year restricting federal signs on private property.

Under the rules, signs can be no larger than 60cm by 60cm, with limits of one per property and a maximum of 150 per federal electorate.

Mr Chandler-Mather said the Greens will ignore the laws as they're undemocractic and deny people freedom of expression.

"A 150-yard sign cap on a federal electorate, which has about 120,000 residents, would allow less than one per cent of households allowed to have a yard sign," he said.

"That is so obviously ridiculous."

Brisbane LNP Councillor Kim Marx said the law applies to all parties equally and will be enforced during the campaign.

"The law strikes an appropriate balance between allowing freedom of expression while preventing a political signage free-for-all that residents strongly oppose," she told AAP.

Mr Chandler-Mather said the council hadn't capped billboards, indicating the laws have been designed to disadvantage smaller, grassroots parties.

© AAP 2022

The Greens say their own polling shows Labor MP Terri Butler can be ousted from the inner Brisbane seat of Griffith, but Labor has dismissed the survey as strategic "hype".

Ms Butler has held the federal seat for eight years and has a margin of 2.86 per cent on a two-party preferred basis.

However her primary vote has been falling steadily since 2014, while the Greens' share of the primary has risen more than 13 per cent.

Greens candidate Max Chandler-Mather said door-to-door polling of 25,000 voters conducted by his party showed he could benefit from a 7.2 per cent swing at the May 21 election.

That would put his primary vote just above the 31 per cent his Labor rival won four years ago.

Greens' polling has previously predicted it picking up a Brisbane council ward and two state electorates, and Mr Chandler-Mather is optimistic about the results.

"It's a confirmation that all of this hard work is paying off for us, and now we're just going to get our heads down and campaign like crazy for the next four-and-a-bit weeks," he told AAP.

However, Labor dismissed the Greens' release of polling data as an election stunt, and rejected the result.

"This isn't a poll. This is a Greens party hype campaign," a Labor official told AAP.

"It's part of their political strategy but that doesn't make it true.

"Terri and Labor volunteers across Griffith are working hard every day to take the fight to Scott Morrison and elect an Albanese Labor government."

Meanwhile, the Greens are gearing up for a stoush with the Brisbane City Council over restrictions on electoral yard signs, which it says are undemocratic.

Lord Mayor Adrian Schrinner, a Liberal National Party member, passed laws last year restricting federal signs on private property.

Under the rules, signs can be no larger than 60cm by 60cm, with limits of one per property and a maximum of 150 per federal electorate.

Mr Chandler-Mather said his party will ignore the laws, which he said deny thousands of voters their freedom of expression.

"A 150-yard sign cap on a federal electorate, which has about 120,000 residents, would allow less than one per cent of households to have a yard sign," he said.

"That is so obviously ridiculous."

Brisbane LNP Councillor Kim Marx said the law applies to all parties equally and will be enforced during the campaign.

"The law strikes an appropriate balance between allowing freedom of expression while preventing a political signage free-for-all that residents strongly oppose," she told AAP.

© AAP 2022

New Mexico workplace safety regulators have issued the maximum possible fine of nearly $US137,000 against a film production company for firearms safety failures on the set of Rust where a cinematographer was fatally shot in October by actor and producer Alec Baldwin.

New Mexico's Occupational Health and Safety Bureau on Wednesday said Rust Movie Productions must pay $US136,793 ($A184,159) and distributed a scathing narrative of safety failures in violation of standard industry protocols, including testimony that production managers took limited or no action to address two misfires on set prior to the fatal shooting.

The bureau also documented gun safety complaints from crew members that went unheeded and said weapons specialists were not allowed to make decisions about additional safety training.

"What we had, based on our investigators' findings, was a set of obvious hazards to employees regarding the use of firearms and management's failure to act upon those obvious hazards," Bob Genoway, bureau chief for occupational safety, told the Associated Press.

At a ranch on the outskirts of Santa Fe on October 21, 2021, Baldwin was pointing a gun at cinematographer Halyna Hutchins inside a small church during set-up for the filming of a scene when it went off, killing Hutchins and wounding the director, Joel Souza.

Baldwin said in a December interview with US broadcaster ABC News that he was pointing the gun at Hutchins at her instruction on the New Mexico set of the Western film when it went off without his pulling the trigger.

The new occupational safety report confirms that a large-calibre revolver was handed to Baldwin by an assistant director, David Halls, without consulting with on-set weapons specialists during or after the gun was loaded.

Regulators note that Halls also served as safety co-ordinator and that he was present and witnessed two accidental discharges of rifles on set, and that he and other managers who knew of the misfires took no investigative, corrective or disciplinary action.

Crew members expressed surprise and discomfort.

"The Safety Coordinator was present on set and took no direct action to address safety concerns," the report states.

"Management was provided with multiple opportunities to take corrective actions and chose not to do so. As a result of these failures, Director Joel Souza and cinematographer Halyna Hutchins were severely injured. Halyna Hutchins succumbed to her injuries."

A spokesman for Rust Movie Productions did not immediately respond to an email seeking comment.

A lawyer for Baldwin was not immediately available.

James Kenney, secretary of the Environment Department that oversees occupational safety, said the agency dedicated 1500 staff hours to its investigation, examined hundreds of documents and conducted at least a dozen interviews with cast and crew members.

Investigators found production managers placed tight limits on resources for a small team that controlled weapons on set and failed to address concerns about a shotgun left unattended twice.

Armorer Hannah Gutierrez Reed, the daughter of a sharpshooter and consultant to film productions, was limited to eight paid days as an armourer to oversee weapons and training, and was assigned otherwise to lighter duties as a props assistant.

As her time as an armourer ran out, Gutierrez Reed warned a manager and was rebuffed.

Safety investigators also note that the production company did not develop a process to ensure live rounds of ammunition were not brought on set, in violation of industry safety protocols.

Safety meetings were conducted but not every day that weapons were used, as required.

Kenney said the separate investigations into possible criminal charges are still underway.

© AP 2022