Chatrie and the Future of the Fourth Amendment
· 47 min
Episode Chatrie and the Future of the Fourth Amendment
In a recent decision, the U.S. Supreme Court held that law enforcement’s use of a geofence warrant, which collected identity and location data from mobile phone users, violated the Fourth Amendment's protection against unreasonable searches and seizures. Professor Orin S. Kerr of Stanford University unpacks the decision in Chatrie v. United States and explores what it means for the future of the Fourth Amendment, privacy, and government surveillance in the digital age. Julie Silverbrook, chief content and learning officer at the National Constitution Center, moderates.
Resources
• Orin S. Kerr, “The Fourth Amendment After Chatrie,” Stanford Law Working Paper Series (Aug 12, 2026) • Orin S. Kerr, The Digital Fourth Amendment: Privacy and Policing in Our Online World (2025) • The Fourth Amendment, National Constitution Center • Chatrie v. United States (2026) • Case v. Montana (2026) • Carpenter v. United States (2018) • Riley v. California (2014) • United States v. Knotts (1983) • United States v. Leon (1984) • Mapp v. Ohio (1961)
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Links in the notes 11
- https://papers.ssrn.com/sol3/papers.cfm?abstract_id=7238178
- https://www.amazon.com/Digital-Fourth-Amendment-Privacy-Policing/dp/0190627077
- https://constitutioncenter.org/the-constitution/amendments/amendment-iv
- https://www.supremecourt.gov/opinions/25pdf/25-112_0am4.pdf
- https://www.supremecourt.gov/opinions/25pdf/607us1r06_19m1.pdf
- https://constitutioncenter.org/the-constitution/supreme-court-case-library/carpenter-v-united-states
- https://www.supremecourt.gov/opinions/boundvolumes/573BV.pdf
- https://supreme.justia.com/cases/federal/us/460/276/
- https://supreme.justia.com/cases/federal/us/468/897/
- https://constitutioncenter.org/the-constitution/supreme-court-case-library/mapp-v-ohio
- https://constitutioncenter.org/donate
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