Senate Hearing Questions ALPR Use and Privacy

A recent US Senate hearing examined the growing use of automated license plate readers (ALPRs) and AI-powered surveillance, with witnesses detailing wrongful arrests and security flaws.

Close-up of a Flock Safety license plate reader camera head

A recent US Senate hearing focused on the expanding use of automated license plate readers (ALPRs) and artificial intelligence-driven surveillance systems. Witnesses shared accounts of wrongful arrests, alleged police misuse, and security vulnerabilities related to these technologies, including those from Flock Safety, Dallas Express reported.

The Senate Judiciary Subcommittee on Crime and Counterterrorism held the hearing, titled "Always Watching: Flock's Nationwide AI Surveillance Network," on September 23. This discussion follows ongoing public debate across the country regarding the use and oversight of such networks.

Can ALPRs Lead to Wrongful Arrests?

Lindsey Isaacs, a Florida resident, testified about her experience with an ALPR scan. She stated that a Flock camera scan contributed to an investigation that led to her arrest for a fatal crash she was not involved in.

Isaacs detailed her timeline:

  • October 4, 2025: She spent the day with her mother in Palm Coast, then drove to a store in Davenport, returning home around 10:25 p.m.
  • Hours later: Florida Highway Patrol and Marion County Sheriff's Office deputies looked for her at her parents' home in Ocala.
  • Later: Officers came to her Palm Coast apartment, and despite her providing receipts and location information, her Dodge Durango was impounded.
  • Later: Isaacs learned investigators used a Flock ALPR that captured her vehicle roughly two to three miles from the crash scene. Witnesses had described a maroon Dodge Durango, while investigators initially sought a black one.
  • April 2026: A warrant was issued for Isaacs' arrest. She surrendered and spent 13 days in jail, including time in solitary confinement.
  • April 28: Her attorney presented photos of her vehicle without the collision damage investigators claimed was present. She was released on bond the next day.
  • May: Prosecutors filed a "No Information" and declined to prosecute her. Another individual was charged in the investigation.

Isaacs told the committee, "A Flock camera captured my vehicle a few miles from a terrible crash I had nothing to do with that led to 13 days in jail."

What Are the Security and Privacy Concerns?

Witnesses at the hearing also raised broader concerns about ALPR systems. Alasdair Whitney, legislative counsel for the Institute for Justice, noted that modern ALPRs can do more than identify a vehicle at one spot. Flock, he said, operates over 120,000 cameras in 49 states, processing more than 20 billion vehicle scans monthly. The system can search for vehicles and reconstruct their movements using characteristics like make, model, and color.

Whitney argued that the technology's ability to create detailed location histories requires stronger legal safeguards. He urged Congress to require warrants for law enforcement to access historical vehicle-location data and presented the Institute for Justice's proposed PEEPS (Protecting Everyone from Excessive Police Surveillance) Act.

Cybersecurity researcher Benn Jordan detailed security weaknesses he found in Flock cameras and related systems. He reported that researchers found exposed information such as photographs, license plate data, logs, API keys, passwords, and communications. Researchers also accessed or modified camera systems remotely.

Jordan stated Flock has since invited him and other security researchers to review its hardware and platform. He believes stronger independent security testing should apply across the surveillance industry.

Chad Marlow, senior policy counsel at the American Civil Liberties Union, explained that venture capital and AI have transformed ALPRs into a nationwide tracking system. AI allows searching billions of scans to reconstruct people's movements, even when no crime is suspected. Marlow noted Flock collects over 20 billion license plate scans each month and that over 200 localities have ended contracts with Flock in the past 18 months. The ACLU advocates for federal limits on government access to historical vehicle-location data.

Sheriff Ross Teeple of Pinal County, Arizona, offered a law enforcement perspective. He said traditional ALPRs help identify stolen vehicles and locate missing persons. However, he ended Pinal County's contract with Flock because he believes newer AI-powered camera networks can create detailed maps of people's lives beyond point-in-time plate reading. "If my deputies need a search warrant to put a physical tracker on a vehicle, where is the line for camera systems that build an identical, AI-driven map of a citizen's life?" Teeple asked.

For more information on where these cameras are deployed and how they work, you can explore our live camera map or learn more about ALPRs.

The hearing highlights an ongoing discussion about how law enforcement can use powerful surveillance technology while addressing privacy, security, and constitutional concerns. This debate will likely continue as technology advances and legislative efforts to regulate it evolve.