Comment by Tangurena2

> there are several platforms

One such platform used to be called Vigilant Systems. They'd sell details of where a car has passed a police/Flock ALPR camera, mostly to repo companies, but also bail/bounty hunters. Using details of license plate scans are more up-to-date than the DMV registration. People on the run from courts are extremely unlikely to keep their vehicle registration or driving licenses up to date.

https://www.youtube.com/watch?v=AKxkokoQdkc&t=238

The governing law is Driver's Privacy Protection Act.

https://en.wikipedia.org/wiki/Driver%27s_Privacy_Protection_...