But the point remains: a cop writing down license plates on a notepad can build a similar database. And there's plenty of precedence indicating that police don't need a warrant to record observations in public.
A database can be used to stalk someone, but that doesn't make it a 4th Amendment violation. Remember, a cop can just tail you and follow you without a warrant too.
A database can be used to stalk someone, but that doesn't make it a 4th Amendment violation. Remember, a cop can just tail you and follow you without a warrant too.