San Jose Slashes License Plate Data Retention After ACLU Lawsuit

TL;DR: Three months after the ACLU and EFF sued San Jose over warrantless license plate surveillance, Police Chief Paul Joseph announced policy changes on February 27, 2026. The department will cut data retention from one year to 30 days and disable federal agency access to its 474 Flock cameras. Cameras will also be banned near houses of worship and reproductive health clinics. But the EFF calls these reforms "extremely limited": even 30 days of data retention still creates detailed travel profiles of everyone who drives in the city. The lawsuit continues. City council reviews the changes on March 10.

What San Jose Is Changing

Chief Joseph released a policy memo on February 27 outlining four major changes to the department's ALPR program:

Data retention slashed: Down from one year to 30 days. That's still 30 days of tracking where every car in the city goes, but it's a significant reduction.
Federal access blocked: The department disabled a "Federal Sharing" toggle in Flock's police data portal. Federal agencies can no longer query San Jose's plate data directly.
Sensitive locations protected: Cameras can't record vehicles entering or leaving houses of worship or reproductive health clinics.
Stricter outside access: Other law enforcement agencies must now provide detailed justification to access the data. New requesters need commander approval.

The city council will review these changes on March 10, 2026.

Why Now? The Lawsuit

These changes didn't happen because San Jose had a sudden privacy awakening. They happened because the city got sued.

On November 18, 2025, the Electronic Frontier Foundation and ACLU of Northern California filed suit in Santa Clara County Superior Court. The lawsuit challenged San Jose's practice of conducting 261,000 warrantless database searches in a single year: 692 searches a day with no judicial oversight.

The suit was filed on behalf of SIREN (Services, Immigrant Rights and Education Network) and CAIR-CA (Council on American-Islamic Relations - California). Both organizations serve communities with heightened surveillance risks: immigrants facing potential ICE tracking and Muslim Americans targeted since 9/11.

Three ALPR cameras sit directly outside an immigration law firm. That detail ended up in the lawsuit.

The EFF Says It's Not Enough

Andrew Crocker, EFF staff attorney, called the reforms "extremely limited."

His point: even 30-day retention enables police to build detailed files on anyone who drives in the city. Where you went. When you went there. How often you visit certain addresses. Patterns that reveal your life: your doctor's office, your mosque, your divorce lawyer, the protest you attended.

"Thirty days is still a significant amount of time to track someone's movements," Crocker said.

The lawsuit sought a warrant requirement before any database search. That demand hasn't been met. Police can still query the system without judicial approval. They just have less data to query.

The case continues.

The Federal Access Problem

San Jose's decision to block federal access didn't come out of nowhere. Across the Bay Area, cities are discovering their "local" surveillance cameras are feeding a national dragnet.

Mountain View disabled all 30 of its Flock cameras on February 3 after discovering the ATF, Air Force, and GSA Inspector General had been querying its data without authorization. Austin, Eugene, Flagstaff, and Cambridge have all canceled Flock contracts after similar revelations.

California's sanctuary law prohibits local police from participating in immigration enforcement. But that law means nothing if ICE can pull ALPR data showing a vehicle's location history from a national network. San Jose is trying to close that backdoor, at least on paper.

Whether disabling a toggle in Flock's portal actually prevents federal access remains to be seen. The company operates more than 5,000 cameras nationwide, scanning 20 billion license plates monthly. Data-sharing "glitches" have exposed supposedly restricted systems before.

The Bay Area Rebellion

San Jose's policy changes follow similar moves across the region:

Mountain View: Shut down all 30 Flock cameras on February 3 after federal access discovery.
Santa Cruz: Suspended its Flock program pending review.
Richmond: Disabled cameras after community pressure over immigration concerns.
Berkeley: Rejected a Flock proposal entirely.

San Jose is the largest city to modify rather than cancel its program. With 474 cameras (the most in the Bay Area) the city is betting it can keep the surveillance benefits while limiting the damage. Critics aren't convinced that's possible.

What This Means For You

If you drive in San Jose, your movements will still be logged. Just for 30 days instead of a year. Police can still search that data without a warrant. They just can't (supposedly) share it with ICE.

The lawsuit sought something more fundamental: a warrant requirement before any search of historical location data. That would mean a judge reviews each query before it happens. San Jose isn't offering that.

For immigrant communities, the federal access block matters. But it's a policy, not a law. Policies change. The next police chief could flip the toggle back on.

The March 10 city council meeting is public. If you want to weigh in, that's your chance.

Sources

Published: March 2, 2026