OPP say they expect to lay charges after a 29 year old Barrie woman was seriously injured when a wheel came off a car and smashed through the windshield of her car on Highway 400 north of Highway 89 on Wednesday morning.
Toronto police confirm the tire came off a vehicle being driven by a 56 year old off-duty officer.
Provincial police say the front tire came off a northbound vehicle and bounced over the highway and slammed into a southbound car.
The woman was airlifted to hospital but police say she will make a full recovery.
Anyone with relevant dashboard camera video is urged to contact police.