Several people have already received flash bans barring them from licensed premises in Tamworth, after an ID scanning system linking a number of CBD venues went live over the weekend.

The ID scanners were trialled in recent weeks and were used across almost half-a-dozen venues for the first time last weekend.

The system enables licensees to ban troublesome patrons across all the hotels instantly with either flash bans that last for 12 hours or year long bans.

Licensee Nick Weir said it is an effective system.

"There's been a few intoxications and so you you ask the person to leave, you flash-bar them for 12 hours for intoxication and then they can't get into the other venues," he said.

"It's rather quick to bar somebody.

"Generally if I have to bar somebody it only takes about a hundred metres for them to walk away before they're barred from everywhere else so it's pretty quick like that."

He said the system was received well by patrons.

"We were expecting to have a fair few disgruntled sort of people but it wasn't the case," Mr Weir said.

"A lot of people were actually fairly happy, they're all smiling and giving the thumbs up in the photo so everybody has been fairly good."