Queensland Attorney-General Jarrod Bleijie says an inquiry into February's Redcliffe by-election, north of Brisbane, has recommended changes to practices at polling booths during elections.

The electoral commissioner's report into polling booth behaviour during the by-election found many voters felt intimidated and harassed.

The recommendations include a new offence of obstructing people from entering a polling booth, and prohibiting the use of loud speakers.

Mr Bleijie says the investigation found cases of intimidating and obstructing behaviour from campaigners, as well as unsavoury behaviour from scrutineers.

It was a dramatic day of campaigning during which Premier Campbell Newman was heckled and jeered at one polling booth.

The by-election was held to elect a replacement for disgraced former MP Scott Driscoll.

The LNP-turned-independent MP was forced to vacate his seat in November.

Labor's Yvette D'Ath won the by-election against LNP candidate Kerri-Anne Dooley.

Mr Bleijie says the by-election inquiry shows the state's election laws are flawed and the Government is considering changing regulations.

"What the electoral commissioner has found in the Redcliffe by-election - and over 121 submissions were received - is that Queensland has relatively flawed laws in respect to comparison to other states with respect to what happens on election day, making sure people don't feel fear and intimidated when they walk into a polling station," he said.

"The electoral commissioner has recommended certain things in terms of new offences for people that prohibit people going into vote easier.

"[Such as] limiting the numbers of scrutineers, authorising electoral staff to give lawful directions to people, restricting the display of certain political statements, and of course introducing involuntary codes for people participating in the electoral process."

Mr Bleijie also says the State Government may go further and ban how-to-vote cards and 'political spruikers' at polling booths, even though it is not recommended in the report.

"What we're actually thinking about doing is regulating them so they might be displayed in polling stations," he said.

However, Opposition Leader Annastacia Palaszczuk has criticised the proposal.

"Banning how-to-vote cards is alarming and it is concerning," she said.

ALP state secretary Anthony Chisholm says proposed changes to the Electoral Act are a knee-jerk reaction to the LNP's loss in the Redcliffe by-election.

Mr Chisholm says there is no evidence to support the changes.

"They mention 121 people putting in a submission - that's a paltry number compared to the more than 28,000 people who've voted," he said.

"I think it's very dangerous to make recommendations that will affect the election right across the state based on 121 submissions out of one election."

Mr Bleijie is calling for public feedback on the possible changes.