Police Officers in Over a Dozen U.S. Cases Abused Flock ALPR Cameras for Stalking
Police officers across the U.S. have been caught using Flock automated license-plate recognition cameras to stalk individuals illegally, exposing weak access controls in the widely deployed surveillance network.

Police officers in over a dozen U.S. cases have been caught using Flock surveillance cameras to stalk individuals illegally. The incidents involve officers abusing the automated license-plate recognition (ALPR) system to track victims' movements without authorization. This highlights a security and privacy failure in the access controls of the Flock camera network, a widely deployed law-enforcement tool.
The abuse came to light through court records and internal investigations, revealing that officers used their authorized access to Flock's ALPR database to monitor the locations of romantic partners, ex-spouses, journalists, and others. In some cases, officers conducted hundreds of queries over months, often outside of any official investigation. The victims were unaware they were being tracked until the misconduct was discovered.
Flock Safety, the company behind the cameras, has marketed its system as a crime-fighting tool that captures license plates and vehicle characteristics, storing data for up to 30 days. The system is used by thousands of police departments nationwide. However, the recent cases underscore that the platform's audit and access controls are insufficient to prevent insider abuse. In several instances, officers were able to query the system without triggering alerts or requiring supervisor approval.
The incidents have prompted calls for stricter oversight and transparency. Privacy advocates argue that the Flock system, while useful for solving crimes, creates a mass surveillance infrastructure that is vulnerable to misuse. They point out that the same data that helps catch car thieves can be weaponized for stalking and harassment. Some departments have begun implementing additional safeguards, such as requiring a supervisor to approve each query and logging all searches for periodic review.
Flock Safety has stated that it is cooperating with investigations and has updated its software to include better auditing and anomaly detection. The company also noted that it provides training to law enforcement agencies on proper use. However, critics say that the fundamental design of the system—which gives officers easy access to a vast repository of location data—invites abuse.
These cases are part of a broader pattern of law enforcement misuse of surveillance technologies. Similar abuses have been reported with other ALPR systems, cell-site simulators, and social media monitoring tools. The Flock incidents highlight the need for clear policies, independent oversight, and technical safeguards to prevent authorized users from turning public safety tools into instruments of private harassment.
As the investigations continue, some victims have filed lawsuits against the officers and their departments, alleging violations of privacy and civil rights. The cases are likely to fuel ongoing debates about the balance between public safety and individual privacy in an era of ubiquitous surveillance.