Queensland's hotels and clubs have one political candidate on their side when it comes to debate on their trading hours.

Sex Party member Rory Killen, who is running against LNP leader Campbell Newman and sitting Labor MP Kate Jones in the Brisbane seat of Ashgrove, says liquor laws should be relaxed.

Mr Killen argues mandatory closing times at bars and clubs create problems because drinkers are forced out of premises and onto the street at the same time.

"Queensland's restrictive liquor regulations are touted as a solution, but they are very much part of the problem," Mr Killen said.

"Remove set closing times and you'll see fewer people on the streets at once. That means less violence."

But Queensland's doctors say alcohol-fuelled incidents are on the rise, and they want curtail the hours of licensed premises.

The Royal Australiasian College of Surgeons has told The Courier-Mail the State Government should ditch 3am and 5am trading and make clubs and pubs shut at 2am.

"We need to emphasise there are hazardous hours, and that's after about 1.30 in the morning in the inner city," the association's trauma committee chairman Dr Daryl Wall said.

Queensland is trialling "drink safe precincts" in major entertainment areas in Brisbane's Fortitude Valley, Townsville and the Gold Coast.

The areas have more police, better supervised taxi zones and more support services.

Premier Anna Bligh said the precincts had been a success, with a reduction in alcohol-fuelled violence.

"We had a comprehensive review about trading hours about 18 months ago as we are in the middle of a trial of our drink safe precincts," Ms Bligh told reporters.

"I have a lot of sympathy for doctors and health workers who have to patch people up after alcohol-fuelled violence.

"However, we can say in the drink safe precincts, we can see a reduction in alcohol-fuelled violence."

A good police presence and public transport to move people were important, as well as trading hours, Ms Bligh said.

Source: News.com.au