Archive of posts about Fourth Amendment Third Party Doctrine by Daniel J. Solove for his blog at TeachPrivacy, a privacy awareness training company.
Originally posted on Substack Yesterday, I edited Chatrie v. United States (2026) for my casebook, INFORMATION PRIVACY LAW, which Paul Schwartz and I are in the process of updating right now. The U.S. Supreme Court held that there is a reasonable expectation of privacy in geolocation data obtained via a geofencing warrant (which compels a company to turn […]
by Daniel J. Solove Today, the U.S. Supreme Court handed down a decision on two cases involving the police searching cell phones incident to arrest. The Court held 9-0 in an opinion written by Chief Justice Roberts that the Fourth Amendment requires a warrant to search a cell phone even after a person is placed […]