The Supreme Court is weeks away from delivering its most consequential digital privacy ruling since 2018, and the stakes stretch far beyond a Virginia bank robbery. The case — Chatrie v. United States — centers on a geofence warrant, a law enforcement tool that searches everyone's location data to find an unknown suspect. But the attorney who argued the case before the justices on April 27 warns that however the court rules, it could determine whether police can scan millions of people's AI chat histories, keyword searches, emails, and cloud files — without naming a single suspect in advance. A decision is expected before the end of June 2026.
Geofence Warrants Search Everyone to Find Anyone
A geofence warrant inverts the traditional investigative model. Rather than identifying a suspect and then seeking a warrant to search their records, law enforcement identifies a geographic area and a time window, then demands that technology companies hand over data on every user present. In the Chatrie case, investigators directed Google to search its entire location history database — covering more than 500 million accounts — to identify devices within a 150-meter radius of a credit union in Midlothian, Virginia, within one hour of a May 2019 robbery. Nineteen people's location data was swept up; three were unmasked, including Okello Chatrie, who was ultimately convicted. Google noted in court filings that it has received geofence warrants covering areas as large as 2.5 square miles of San Francisco spanning more than 48 hours.
In 2019 alone, Google received more than 8,000 such warrants.
What Ruling Could Unlock for Law Enforcement
Adam Unikowsky, the attorney who argued the case for Chatrie, told Recorded Future News on May 22 that the court's decision could set constitutional parameters — or eliminate them — for a much broader category of police tools. Depending on how the justices frame their ruling, it could determine whether law enforcement can run reverse keyword searches, scanning every person's search history for terms linked to a crime, or reverse AI searches, combing through millions of AI chat logs for questions deemed relevant to a criminal investigation.
"The court's ruling could address the constitutionality of reverse keyword searches as well as reverse AI searches," Unikowsky said, describing scenarios in which police could query every user's search history or check "everyone's AI chats for questions that are probative of whether a person has committed a particular crime."
The concern is not hypothetical. Several of the government's central arguments in Chatrie — particularly its claim that users waived privacy interests by agreeing to Google's terms of service — apply equally to emails, calendar entries, photos, and documents stored in the cloud. Unikowsky warned that if the court accepts that reasoning, the consequence is a near-total loss of privacy protection for cloud-stored content. "Many of the government's arguments really would imply that there's no protection to data in the cloud at all," he said.
Innocent People Already Caught in Digital Dragnets
The risk is not limited to future searches. Geofence warrants have already ensnared innocent people with documented, life-altering consequences. In Avondale, Arizona, police arrested Jorge Molina for murder after geofence data placed him at a crime scene. The data was wrong — the same location records impossibly placed him in multiple locations simultaneously — but police had already spent six days jailing him and named him publicly as the primary murder suspect. Molina subsequently dropped out of school, lost his job, car, and reputation.
Civil liberties groups have also documented law enforcement's use of geofence warrants to identify participants in lawful protests, including demonstrations following George Floyd's murder in Minneapolis in 2020, where police obtained warrants that exposed protesters' identities to the very agency they were protesting. The ACLU, in an amicus brief filed in March 2026, called geofence searches "an unconstitutional fishing expedition that violates the Constitution" and noted that analysis of San Francisco geofence warrants found data captured from private homes, medical offices, gyms, and religious sites — revealing, by inference, political associations, religious affiliation, and health information.
Consent Claim Is "Not Realistic," Petitioner Argues
The government's case rests on two arguments: users consented when they agreed to Google's terms of service, and the initial data pull is anonymous. Unikowsky dismantles both.
On consent, he points to the actual moment Android users encounter the choice: during phone setup, a prompt warns that certain features — including Google Assistant — may not work unless location history is enabled. Users clicking yes at that moment are not making an informed waiver of constitutional rights; they are trying to get their phone to work. "People are not told that every two minutes Google will know their location within three meters and keep it potentially forever and give it to the government if the government asks for it," he said.
On anonymity, the defense presented expert witness testimony demonstrating that a person's identity can typically be inferred from just two hours of movement data cross-referenced with public records. An expert in the Chatrie case inferred the identities of three people solely from their movements within a two-hour window. "The idea that anonymity really protects people's privacy is not realistic," Unikowsky said.
In oral arguments, Justice Sonia Sotomayor pushed back on the general warrant characterization, noting the warrant identified a place, a crime, and a limited timeframe. But Unikowsky's position is that ordering Google to search every account — tens of millions of them — to locate an unknown suspect is constitutionally indistinguishable from the general warrants the Fourth Amendment was written to prohibit: the kind of authority British officials used to rummage through colonists' homes without naming targets before the American Revolution.
Fourth Amendment Reaches First Digital Privacy Crossroads Since Carpenter
The last time the Supreme Court ruled on digital privacy was Carpenter v. United States in 2018, which held that law enforcement must generally obtain a warrant before acquiring historical cell-site location data. That ruling was a significant step for privacy advocates but deliberately narrow, leaving unanswered what kinds of warrants are permissible for digital evidence and how broadly they may be drawn.
Chatrie arrives in a transformed landscape. Ubiquitous AI assistants, cloud-native data storage, and continuous location tracking by hundreds of apps and services have multiplied the data available to investigators — and the exposure of individuals who have never been suspected of anything. Nearly 30 amicus briefs were filed in Chatrie, a measure of how much the technology and legal communities expect the ruling to matter.
Orin Kerr, a University of California, Berkeley law professor who filed his own amicus brief and specializes in Fourth Amendment law, predicted after oral arguments that the court is "likely to reject" Chatrie's broadest arguments and will probably allow geofence warrants to continue — but constrained in geographic and temporal scope. A ruling that requires tighter limits on warrants without resolving the underlying constitutional question would leave the AI chat and keyword search issues unaddressed, likely requiring further litigation.
Google Exit Does Not Moot Question
Justice Samuel Alito raised a notable point during oral arguments: Google has discontinued the location history database at the center of Chatrie, meaning it can no longer comply with these warrants. But Unikowsky argues the ruling is anything but moot. Hundreds of other apps and services continue to collect and store precise, timestamped location data. The constitutional framework the court establishes in Chatrie will govern law enforcement's access to all of them — and, depending on the reasoning the majority adopts, may also reach the AI logs, cloud storage, and keyword histories that Unikowsky described.
The ruling is expected before the current Supreme Court term closes at the end of June 2026. Every person who uses a smartphone, an AI chatbot, or cloud storage has a direct stake in what the justices decide.
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