Your examples are clear indication that you know jack shit about actual police work. Admittedly in civilised countries where there are checks and due process. Cops aren’t getting access freely to comms. A magistrate can depending on circumstances. And there’s plenty of red tape everywhere. Even telco operators will refuse to respond to a request if not absolutely justified. And typically that’s not when timmy sold some shit to his neighbour. Organised crime, murders, rapts… instances of those with actual victims are not threats, they are shits that happen and needs to be sorted.