Undercover officers became suspicious when they spotted a man wearing a Cincinnati police windbreaker jacket with a radio microphone attached inside a silver sport utility vehicle on Redway Avenue Monday.
They called for uniformed police to respond and investigate.
Those units stopped the man's 2009, silver Chevrolet Traverse in the 1200 block of Paddock Road just before 3 p.m. and asked which district he worked for.
"I'm off duty," the man responded and drove off.
He led police on a high speed chase before he was taken into custody without further incident minutes later. An open 16 oz can of Bud Light beer was found in the center console of his car.
The suspect, David Morgan, 45, of Fairfield, is charged with impersonating a police officer, possession of an open container, obstructing official business, reckless driving, driving on a suspended license and not wearing a seatbelt.
He was held overnight at the Hamilton County jail in lieu of $4,000 bond and is scheduled to appear before a judge at 12:30 p.m.
It is not clear how he got a hold of the jacket. He is "retired" and does not work, according to his traffic ticket.
Morgan has a criminal record with felony convictions on charges of theft and aggravated drug possession as well as arrests for driving a motor vehicle while under the influence of alcohol and/or drugs, court records show.