Government-ordered ID scanners in Queensland's problem nightclub precincts have detected just one banned drinker for every 26,000 licences checked in the first year of the program.

Data obtained by the ABC revealed 12.8 million IDs were scanned since the start of the program in July 2017, and of that, 488 people were found trying to going into a bar or club from which they had been banned.

That means just 0.004 per cent of the IDs scanned were of patrons on banning orders.

Under ID-scanning laws, people looking for a drink inside key Queensland venues after 10:00pm need to have their identification scanned on entry.

The scanners were made compulsory in 244 venues, at hotspot precincts including Fortitude Valley, the Brisbane CBD and Caxton Street.

Scanners were made compulsory in 244 venues in Brisbane. ( ABC News: Meghna Bali )

The technology allows venues to share information about problematic patrons and prevent them from re-entering another club or bar and were introduced in a bid by the Queensland Government to combat alcohol-fuelled violence.

The introduction of the scanners was slammed by some club owners, who claimed it caused a drop in trade, and was expensive to administer.

Queensland Hotels Association CEO Bernie Hogan said the scanners continued to cause a fall in patronage across the state.

"Right from the very beginning, we had members who would say it was a 25 - 30 per cent downturn in the first month. This hasn't recovered and this continues across the state to experience those sorts of downturns," he said.

Attorney-General Yvette D'Ath said the low number of people picked up showed the system worked as a deterrent.

"That is because the message is getting out there — don't even try to come into those areas because you will be turned away," she said.

A spokesperson for the Department of Justice said the scanners had assisted with the enforcement of banning orders and prevented repeat offenders from committing anti-social and violent behaviour.

"The ID scanning system also operates as a deterrent to troublemakers and is in place to help everyone enjoy a safe night out — from patrons to licensees and their staff," the spokesperson said.

The Department said it was unable to say how many individual people had been scanned because "data provided to the Office of Liquor and Gaming Regulation by ID scanning Approved Operators does not include identifying particulars".

Review pushed back again

The Government had promised to complete an independent review into the efficiency of the scanners in tackling alcohol fuelled-violence by mid-2018.

But the review's completion was first pushed back to October, and now the Department is unable say when it will be finished.

A spokesperson said the "independent evaluation" was still under way.

An independent review into the efficiency of the scanners has been pushed back again. ( ABC News: Meghna Bali )

Simon Turner from the Fortitude Valley Safe Night Precinct said venue owners still had concerns about the costs of operating the scanners, and their effectiveness.

"Clubs are wearing the majority of the cost, but they're also delivering it very effectively," he said.

"The second thing I think clubs would like to see a change in is looking at who operates the scanners.

"It's been a security company that's been responsible for administering it, and it's clearly evident that managers have the capacity to manage that instead.

"So I think that the Government had a role to play in continuing to subsidise the measure.

"And the third issue that comes up is whether they should still have to operate the scanners in early periods of lower activity, so during the early part of the week for example."

Mr Turner said he had not been told when the results of the review would be made available to club owners.

