Chatrie and the Supreme Court's Embrace of Privacy Doctrine
I've been blogging here ( and here ) recently about Chatrie v. United States , the Supreme Court's landmark Fourth Amendment case decided late last month. Chatrie held that geofence searches, which use cellphone data to track cellphone users in a certain area at a certain time, are Fourth Amendment searches requiring probable cause and a warrant. In today’s post, I'll talk about which theories of Fourth Amendment law the Court adopted in Chatrie and which it didn't. First, I’ll explore why Justice Gorsuch hasn’t gained any support over the past eight years for his property-centered approach to Fourth Amendment searches. Second, I’ll look at the bigger picture of the Court’s embrace of privacy and rejection of traditional measures in applying the Fourth Amendment to the modern world. What Happened to the New Property Era in Fourth Amendment Law? Justice Gorsuch wrote separately in Chatrie , concurring in the result. He argued that the Court should discard th...