Earlier quoted context omitted.
If I run into someone at the grocery store, I can remember "oh I saw them yesterday" if the Police interview me. If I start writing down/logging every time I saw that person at the grocery store and plotting it out, I would consider that "crossing the line". A Flock camera that receives BOLO's for known-criminals and immediately flags captures in real-time is different than tracking every person going everywhere with…
What if the grocery store has a security camera pointed at the door that records 24/7? Should they not be allowed to do that?
That's the expectation people have for privacy.