Law enforcement definitely oversteps their boundaries a lot, there is misconduct etc., But there is a difference between mass surveillance, laws that force comp

Law enforcement definitely oversteps their boundaries a lot, there is misconduct etc., But there is a difference between mass surveillance, laws that force companies to provide access to information while at the same time not being allowed to reveal this has happened, and legitimate requests for information relevant to solving a crime. I had a case in my broader circle of relatives that made me think about if or rather how access to such information should be available to law enforcement, and how that could reliably work internationally. It was a French woman who used some app to track her running habits that also had a social component, where you could interact with people in your area, compare stats, message them etc. There was someone on there who messaged her a couple times asking if they could run together some time, but apparently in a really creepy way, so she declined and later ignored it. She'd run in the evenings along the Rhine river, and one evening she hears someone catching up to her from behind, and next thing she remembers is she's lying in some bushes, a guy standing next to her saying he already called the cops as he saw from a distance someone knock her out from behind, then pulling her off the walkway. The guy started shouting like crazy that he'd already called the cops, and the attacker ran away immediately. When she made her statement a couple hours later at the police station, the suspicious profile on that running app was deleted. The French cops then contacted the company behind the app to get any information possible about that user, some US startup, which denied the request due to privacy concerns. And that's the end of the investigation. It's the closest they ever got to that guy.