The problem here is that the police can find reasons to arrest a person. So, let's say you are a political dissident and the government wants to know when the

The problem here is that the police can find reasons to arrest a person. So, let's say you are a political dissident and the government wants to know when the next meeting of your protest group is. The police follow you around for an hour, pull you over for failing to come to a complete stop before a right turn on red, then arrest you for "disorderly conduct" and "resisting arrest." Now they search your phone, get the information they want, and release you, only to arrest you again next Sunday while you are making protest signs with your friends.