Unmarked police cars are typically kept very clean. Officers wash their cars daily. Winter salt, road, and mud lead to immediate cleanings to provide optimal visibility.

Most Illinois drivers likely know you need to pull over when a police officer initiates a traffic stop, but what if the car is unmarked? Regulations on unmarked law enforcement vehicles vary by state.

Many drivers tend to slow downwhen they notice a patrol car on the side of the road. What happens if law enforcement vehicles aren't easily identifiable? Can you legally be pulled over by an unmarked ...