Key Readings on the Supreme Court’s Geofence Warrant Case: Chatrie v. United States

Supreme Court to Hear Geofence Warrant Case: Chatrie v. United States

The Supreme Court is set to hear oral arguments in Chatrie v. United States on Monday, a landmark case examining the constitutionality of geofence warrants. These warrants require tech companies like Google to provide location data for all devices within a specified geographic area during a given timeframe, raising significant Fourth Amendment concerns.

To provide context and analysis ahead of the hearing, this post compiles a comprehensive list of related articles, presented in reverse chronological order. Each entry reflects years of evolving legal thought on geofence warrants and their implications for privacy rights.

Latest Commentary on Chatrie v. United States

• The Difficulty of the Search Question: More Thoughts on Chatrie, April 24, 2026.
• The Slowing of Fourth Amendment Law, and Now Advisory Opinions: A Comment on Chatrie v. United States, April 16, 2026.
• A Narrow Resolution on Geofence Warrants?: A Thought on Chatrie, April 14, 2026.
• My Amicus Brief in the Geofence Warrant Case, Chatrie v. United States, April 1, 2026.
• The Carpenter Adjustment, March 1, 2026.
• Final Version, Data Scanning and the Fourth Amendment, February 24, 2026.

Earlier Legal Analysis and Developments

• The Fourth Circuit's Geofence Warrant Case Ends Not With a Bang But a Whisper, March 2, 2025.
• Fourth Circuit Votes to Rehear Its Geofence Warrant Case, November 1, 2024.
• The ACLU's Response to My Post on the Fifth Circuit's Smith Ruling—And My Reply to the ACLU, August 16, 2024.
• The Fifth Circuit Shuts Down Geofence Warrants—and Maybe a Lot More, August 13, 2024.
• Accessing Google Location History Records Is Not a Search — At Least When Limited — Fourth Circuit Rules, July 10, 2024.
• Did Google Just Defeat Every Geofence Warrant?, December 12, 2023.
• The First Geofence Warrant Case Reaches a Federal Court of Appeals, December 9, 2023.
• The Fourth Amendment and Geofence Warrants: A Critical Look at United States v. Chatrie, March 11, 2022.

Why Chatrie v. United States Matters

Geofence warrants represent a novel and controversial law enforcement tool, blurring the lines between targeted investigations and mass surveillance. The Supreme Court’s decision in Chatrie v. United States could redefine privacy protections in the digital age, influencing how law enforcement accesses location data in future cases.

This collection of posts offers a deep dive into the legal arguments, constitutional questions, and real-world implications of geofence warrants. Whether you are a legal scholar, policymaker, or concerned citizen, these readings provide critical insights into one of the most pressing Fourth Amendment issues of our time.

"The Supreme Court’s ruling in Chatrie v. United States will shape the future of digital privacy and law enforcement surveillance."

For further updates on this case and related legal developments, follow ongoing coverage from legal experts and civil liberties organizations.