"Catherine Crump, a law professor at the University of California-Berkeley, found that horrifying. “Our social media profiles contain sensitive, private information. The circumstances under which police access those profiles raise important public policy questions that should be decided in a transparent public process, not by police departments acting on their own and certainly not by individual officers make it up as they go along,” she said by email. “Police departments should have written policies explaining when they will go undercover to access our social media profiles. And those policies should be vetted by elected representatives, with input from members of the public.”"