A Senior Constable from the WA Police Traffic Enforcement Group has been charged with reckless driving following an incident in Baldivis back in June.
Police allege the 31-year-old officer drove at excessive speed without being authorised to do so, while attempting to stop a motorcycle.
The officer was on-duty and driving a marked police vehicle at the time.
It will be further alleged the officer drove at 171 kilometres per hour in a 100km speed zone.
The Senior Constable is due to appear in the Rockingham Magistrates Court on Tuesday, September 29.
He has been placed on restricted duties until the matter is finalised.