In three separate incidents at Beaumont Hills and Kellyville Ridge, female drivers were pulled over by an unmarked car, fitted with flashing red and blue strobe lights.

In each case it’s alleged the women were approached by two men who challenged their driving behaviour and demanded their licences.

Questioned by the women, the men fled the scene each time but on one occasion, allegedly followed one of the drivers home.

At 11.30 last night, police from the Quakers Hill arrested a 23-year-old man in Brewongle Avenue, Penrith. He was charged with impersonating a police officer with aggravation, intimidation and offensive language and granted conditional bail. He will appear before Penrith Local Court on October 29.

Officers also confiscated a portable strobe light from a 2001 model, red Holden Commodore.

A 22-year-old man from Winston Hills was earlier charged with impersonating a police officer and will receive a Court Attendance Notice.

Police are appealing for anyone with information about the incidents to contact Quakers Hill police on 9678 8999 or Crime Stoppers on 1800 333 000.

Police have advised motorists in the event of a police stop, to pull over in well-lit areas whenever possible and to request the identification of officers if they are not in uniform.

Anyone who notices suspicious behaviour during a police stop is urged to contact their local police station immediately.