ALPRs tell you where a plate is. It doesn't tell you who owns the plate. You'd have to know that already. I'm not sure just having the database grants you th

ALPRs tell you where a plate is. It doesn't tell you who owns the plate. You'd have to know that already. I'm not sure just having the database grants you the ability to stalk, other than at completely random strangers. If you can stalk someone to the point of getting their plate, you can just stick an airtag on their car.