The Special Investigations Unit is clearing the Niagara Regional Police of any wrongdoing after a motorcycle driver was taken to hospital with serious injuries.
The incident happened last August while officers were conducting speed enforcement in West Lincoln.
Officers tried to stop a motorcycle speeding along Silver Street, but the driver made a U-turn and tried to flee.
Instead, the motorcyclist hit a second police car positioned across eastbound lanes of traffic.
The driver was thrown from the bike and taken to hospital.