guess what prolific career criminals do with crime cars?
they look for a car that is very similar if not exact make and model of thier stolen vehicle, then they "clone" the victims license plate with a sheet of embossment copper and a stylus, apply paint at thier shop and affix the imposter to the crime vehicle. that buggers the whole LPR thing.
they can replicate dozens of plates in a day and offer the service for contras.
Not really because it flags an anomaly where the same plate is found in two places that are impossibly far to reach in the time span. Then police can just pull over that plate when they see it with a 50/50 chance it's the stolen car.
The more cameras in the network the faster and more likely a duplicated plate will be spotted.
Sure. But if we have enough surveillance cameras, we can just trace the full path of the car from the moment of theft to now. I'm reminded of Gorgon Stare [1]. Stolen cars suck. But how about murders? I'm sure all of the people who've had loved ones murdered in, say, South Chicago, might have a more positive opinion of such a system. Especially since it wouldn't have to rely on witnesses who are cowed by the threat of reprisal and anti-snitch culture.
That seems like a lot of effort when you can just take the license plate off and if you're really worried print off a convincing temporary license and tape in the back window.