by Shirin Asgari*
Circuit courts are currently split on the constitutionality of geofence warrants. Geofence warrants grant law enforcement officers the power to access personal user data collected and stored by tech giants, such as Apple and Google. This Contribution considers the Fourth Amendment implications of geofence warrants and argues that such warrants are unconstitutional. First, given the Supreme Court’s previous reasoning under Carpenter v. United States,1 individuals have a reasonable expectation of privacy to their location information and other highly personal information attached to their accounts. Second, the nature of geofence warrants makes it impossible to establish probable cause over all individuals whose information is seized and searched beyond mere proximity, in violation of existing Supreme Court precedent established in Ybarra v. Illinois.2 Lastly, geofence warrants lack particularity and give law enforcement officers unbridled discretion to search an individual’s information, in clear violation of the Fourth Amendment.