The police officer, Chris Doyle, was working at Oberon Police Station in July 2016 when the victim alleged there was a physical altercation after she went to the station about a matter involving her 18-year-old son.

Instead of investigating the matter after an official complaint was made, police charged the woman with assaulting police and resisting an officer.

The charges were later withdrawn and police ordered to pay $18,000 in costs.

Following an internal investigation by police, the officer was last month advised of a "loss of Commissioner's confidence" and has been removed from the NSW Police Force under the provisions of S181D of the Police Act 1990.

Chifley Police District local area commander Superintendent Paul McDonald, who did not work within the command when the incidents allegedly occurred, said the matter came across his desk last year.

As a result, an internal investigation was launched and the matter was referred to an internal review panel.

Supt McDonald said at this stage criminal charges were not pending.

"The investigation looked at excessive force in the execution of duty, and following the conclusion of the investigation it was deemed sufficient he was removed from NSW Police Force," he said.

One concern raised at the time of the alleged physical altercation is the fact Oberon Police Station does not have CCTV (closed-circuit television) inside the building.

Supt McDonald said CCTV will be a consideration for the building in any future upgrades announced for the station.

He said all officers in the Chifley sector now wear body worn video and officers are encouraged to operate this when performing custody where there is no CCTV, though he conceded this was at the individual's officer's discretion.