Call interception, retro and all methods of investigation relying on télécommunications are, and need to remain, a tool available for police forces when the crimes they are investigating are greatly impacting society. Having a prosecutor request those within acceptable limits is a net positive. Not the same as having dragnets spying on everyone in the hope of hitting keywords mind.

But criminality is using more and more complex tools at their disposition and there’s just no way of policing like in medieval times anymore.