I'm not aware of any current Canadian members of this site, so you're unlikely to get a definitive answer here.
However I'd guess that the OPP have access to the same types of technology that British police forces do.
In the UK a police officer simply has to enter a car's registration number into the onboard computer in his car to bring up the details of the registered owner, including (if the police officer asks for it) the criminal record of that person and any current restrictions (such as bail conditions) upon his movements.
Indeed, a police officer doesn't necessarily have to enter anything at all into his computer. If the police car is equipped with cameras using ANPR (automatic number plate recognition) technology, as many police cars are, and the registered owner of the 'suspect' car (or other person who is known to drive the vehicle) is listed as a 'person of interest' on the Police National Computer, the information will appear on a screen automatically as soon as the police car's camera spots the other vehicle.