Police said a 19-year-old man was intoxicated and had been evicted from Armidale pubs when he was barred entry from another about 11pm on Saturday.

The local man allegedly became belligerent, forcing hotel management to call for assistance.

Two officers from Armidale Police Station attended the scene.

They issued the young man with a $500 fine for offensive behaviour, advising him to move on to avoid arrest and more severe charges.

Police claim the man refused and a scuffle ensued, during which he allegedly knocked a 52-year-old senior constable to the ground, dislocating his shoulder.

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The accused was released on conditional bail on Sunday morning and will appear in Armidale Local Court next month.

Currently in hospital, the injured officer will be on restricted duties for many weeks while he recovers, police said.

Armidale Police Station officer-in-charge Inspector Darren Williams said patrons seemed to have forgotten they have "certain responsibilities" on nights out.

"Now that the COVID coma is over, everyone is coming out to play," Inspector Williams said.

"So we're reminding everyone that some behaviour is unacceptable and to get rotten and rolling drunk in public places is not going to end well for them."

Inspector Williams said he wanted to see a 'barred from one, barred from all' policy implemented in Armidale.

The idea is to be discussed at the next local liquor accord meeting, and he said many licensed premises are behind the initiative.

"What that means is anybody dealt with in licensed premises for committing an act of violence, or dangerous activity is barred for three months from all licensed establishments linked to the Armidale liquor accord," Inspector Williams said.

"It's an accepted practice by the NSW Liquor and Gaming Authority, and I think New England is one of the last regions to implement it. The program has a significant impact on alcohol-related crime."

The policy benefits the pubs as well as the community Insp Williams said because 'bad behaviour by drunks' can cost pubs the business of good patrons.

"People don't want to watch somebody get on the grog and punch-on with other people causing a disturbance when they're out with their families," he said.

"It spoils it for the licensee, and it spoils it for the patrons, and we have to come in and clean up the mess."

Inspector Williams said behaviour during the Anzac Day long weekend was otherwise pretty good.

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