Essex County OPP are crediting an alert motorist for helping nab an alleged drunk driver.

Police responded to a traffic complaint on Highway 3 in Lakeshore on Jan. 2 at 12 p.m.

A burgundy vehicle travelling westbound was allegedly weaving on the roadway and driving erratically, while being followed by the complainant.

The vehicle was located and stopped by police on Highway 3 near Manning Road. 

Police say the driver had previously consumed alcohol and subsequently failed an Approved Screening Device (ASD) test.

A 30-year-old woman from Grande Prairie, Alberta was arrested and charged with driving motor vehicle in excess of 80 milligrams of alcohol in blood. She will appear in a Windsor court on Jan. 18 to answer to the charge.

Her driver's licence and vehicle was suspended as per the regulations of the Highway Traffic Act of Ontario.