You can subpoena google for the calendar and email, Apple for iMessage routing, and the phone company for phone calls and texts. You can even get emergency warrants for that kind of thing. Then you subpoena all those contacts.<p>This idea that the immediate access to all of an individual&#x27;s information is necessary for law enforcement to do their work is a farce, especially considering the propagation of private and public security cameras. The same logic is used to justify torture, expand SWAT and procure urban assault vehicles. These things are almost always unnecessary, impractical, or unreliable.<p>Yes, people can be extremely careful to avoid police. That&#x27;s not the average case, and we shouldn&#x27;t optimize our law enforcement for it.