500 Cameras Are Watching San Diego Drivers. A New Lawsuit Says That Is Unconstitutional.

October 2
Written By HH Law Firm

LAW BEHIND THE HEADLINES | SAN DIEGO

500 Cameras Are Watching San Diego Drivers. A New Lawsuit Says That Is Unconstitutional.

Think about your drive yesterday. Home to work. School drop-off. A doctor’s appointment. Maybe a church, a mosque, or a protest downtown. Now imagine a computer quietly logging every one of those stops, storing them, and making them searchable.

Your constitutional rights do not come with a software update. They apply on every street, under every camera.

For many San Diegans, that log already exists. And this week, a civil rights lawsuit asked a court to shut it down. Here is what the San Diego Flock camera lawsuit claims, and what it could mean for you.

What Happened This Week

On September 29, the ACLU Foundation of San Diego and Imperial Counties filed suit in San Diego Superior Court against the City of San Diego and the San Diego Police Department on behalf of the Partnership for the Advancement of New Americans (PANA), a nonprofit that advocates for refugee and immigrant communities. The San Diego Flock camera lawsuit claims the city’s network of at least 500 automated license plate reader (ALPR) cameras violates Californians’ constitutional right to privacy. It asks the court to stop the program, remove the streetlight cameras and related hardware, and delete the data already collected.

The groups announced the San Diego Flock camera lawsuit the next morning at a press conference outside the Hall of Justice. The city and SDPD said they cannot comment on pending litigation.

How These Cameras Actually Work

Flock cameras and similar systems sit on poles, streetlights, and highways. They use AI to capture and store license plates, vehicle makes, and other identifying features. According to crowd-sourced data reported by Axios, volunteers have documented 732 ALPRs in San Diego, the most of any California city in that index. SDPD says it owns about 500 of them, and the rest are privately owned.

That last point matters. A 2025 KPBS investigation found that local police could access private plate reader systems run by retailers, malls, homeowners associations, and car dealerships, often with far fewer guardrails than public systems have.

This is not a fringe debate at City Hall, either. The program became a focal point of this year’s budget fight. Some residents raised alarms about surveillance and data sharing, while others praised the cameras for helping police solve crimes. The Council ultimately kept the Flock contract in place, and it voted 5-3 in December to continue using the technology. The San Diego Flock camera lawsuit now puts that decision in front of a judge.

The Legal Question: Is Your Car’s Location Private?

Unlike the U.S. Constitution, Article I, Section 1 of the California Constitution lists privacy by name as an inalienable right. Californians added it by voter initiative in 1972, and it protects people from overreach by both government and private actors. That right sits at the center of the San Diego Flock camera lawsuit.

When a court decides whether the California right to privacy was violated, it generally follows the framework from Hill v. National Collegiate Athletic Assn. (1994). The challenger must show a legally protected privacy interest, a reasonable expectation of privacy in the circumstances, and a serious invasion of that interest. The government then gets the chance to justify the intrusion, and the court weighs both sides.

The ACLU’s legal director framed the stakes simply: if the state privacy right means anything, it “has to mean that we are not under constant surveillance.”

In plain terms: California gives you a stronger privacy right than the federal Constitution does. The San Diego Flock camera lawsuit asks whether recording where every car goes, all day, every day, crosses the line.

Your Car Is a Diary

Any one photo of a license plate seems harmless. The concern is what happens when thousands of them are stitched together. The U.S. Supreme Court recognized this in Carpenter v. United States (2018), holding that police generally need a warrant to obtain historical cell phone location records because they reveal the intimate details of a person’s life. Earlier this year, we broke down the Court’s geofence warrant decision in Chatrie v. United States, which built on that same idea.

Federal courts have not settled whether the same protection applies to plate reader networks. That is part of why the San Diego Flock camera lawsuit, brought under California’s broader privacy right, is worth watching. A ruling here could shape how cities across the state use this technology.

In plain terms: One snapshot is not the issue. A searchable record of everywhere you have driven is. The law is still catching up to what these systems can do.

California Already Limits Who Gets Your Data

California is not starting from zero. Under Senate Bill 34, now Civil Code Section 1798.90.55, a public agency may not sell, share, or transfer ALPR information except to another public agency. The Attorney General’s 2023 guidance explains that this does not include out-of-state or federal agencies, including federal law enforcement.

That rule has already had teeth in San Diego. In 2025, SDPD said it would stop sharing ALPR data with federal and out-of-state agencies after the Attorney General’s office told the department the practice likely violated state law. For immigrant families, those concerns remain front and center. PANA’s leaders say people are afraid to worship, protest, or simply move around freely when they believe their movements are being recorded and could be shared.

In plain terms: State law says your plate data shouldn’t leave California’s public agencies. The San Diego Flock camera lawsuit argues that collecting it at this scale is a problem in the first place.

When a Camera Gets It Wrong

The debate is not only about privacy. It is also about accuracy. According to a lawsuit filed by two San Diego men, Hugo Parra and Ariel Alonso Beltran, police were searching for a suspect in a Golden Hill gun incident in November 2025 and got a Flock hit on a car of the same make and model five miles away, even though officers never captured the suspect’s plate. Both men were arrested. One of them spent nearly a month in jail.

The men say the same camera data could have cleared them if officers had checked it properly. They filed government tort claims in April and are now suing the city for false arrest, negligence, and unreasonable detention. These are allegations, and the city has not commented on the pending case. But the story shows how quickly a single data point can turn into handcuffs, and why a Flock wrongful arrest claim can follow.

It also shows why deadlines matter. Before suing a California city or county for most state-law claims, you must file a government claim. Parra and Beltran filed theirs within months of the arrest, which preserved their right to sue.

What to Do If Surveillance Tech Led to Your Stop or Arrest

Write down everything you remember while it is fresh: times, locations, officer names, and what you were told about why you were stopped.
Keep your own proof of where you were, such as receipts, phone location history, texts, and security footage, and ask businesses to preserve their video before it is overwritten.
Do not discuss the details of your case on social media.
File a government claim within six months to protect state law claims against a city or county.
Talk to a civil rights attorney about federal claims under 42 U.S.C. Section 1983, which in California generally must be filed within two years, and state claims under the Tom Bane Civil Rights Act.

Why the San Diego Flock Camera Lawsuit Matters

We created Law Behind the Headlines to explain what the news means for your rights, without the legal jargon. The San Diego Flock camera lawsuit is a perfect example. It is not really a fight about cameras. It is a fight about how much of your daily life the government can record without suspicion, how long it can keep that record, and what happens when the technology points at the wrong person.

Supporters of the cameras say they help solve crimes, and that deserves a fair hearing. But public safety and constitutional rights are not opposites. A working system should be able to survive court scrutiny. At HH Law Firm, our civil and constitutional rights team will be following this case closely.

Do you drive in San Diego? Then the San Diego Flock camera lawsuit is about you. Share this post so the people you care about know their rights.

If you believe you were wrongly stopped, searched, or arrested, call HH Law Firm at 833-359-6116 or visit hhlawfirm.law. We serve San Diego, Irvine, and Washington, D.C. in English, Spanish, and Arabic.