Earlier quoted context omitted.
I don't think that's anything like obstruction of justice under US law. If you were right, then so too would be recognizing a face from a wanted poster and not calling the police. It isn't even obstruction of justice if they explicitly ask you something and you refuse to respond: https://www.aclu.org/know-your-rights/what-do-when-encounter... So I don't see how not responding to a question they didn't ask could be il…
It absolutely is obstruction of justice if there’s reasonable suspicion and they have a subpoena or warrant and you refuse to hand over said evidence. If they come to your house and Willy nilly ask you for your cameras data because they believe that it spotted a crime then you can say no for sure, but then they’ll just come back with a court order to force compliance since there’s good reason to at least inspect the…
fpgaminer was talking about something where facial recognition is done locally, giving the camera owner the option to contact the police. The cops would not even know you had a camera unless you told them (or unless they saw it).
You seem to be imagining all sorts of other things, including a warrant. Which, yes, if you ignore it is obstruction. But I don't think that was part of what fpgaminer was describing.