It’s stunning how poor all the replies on this thread have been. Not even an attempt to read what I’m saying.

No, I don’t disagree with the need for probable cause. I was asking, how do you build the case for probable cause against someone you’ve never seen and whose communication is completely encrypted? You can’t. I don’t have a solution for that, and I don’t think anyone does. I am merely pointing out that it’s a problem, and that the police’s suggested solution is surveillance.