An Oklahoma federal judge found that warrantless Flock camera database searches can violate the Fourth Amendment when officers lack probable cause, a ruling the company says it will appeal.
U.S. District Judge Sara E. Hill ruled Friday that police use of AI-powered automated license plate reader networks, including systems like those sold by Flock Safety, can cross a constitutional line when officers search the data without adequate probable cause. The Hill reported the decision grew out of a Tulsa County traffic stop that ended in a drug arrest.
The case turned on sequence, not slogans. A Tulsa County deputy noticed a driver with an out-of-state plate, then ran the vehicle through AI camera databases before identifying a traffic violation or other criminal activity. The search returned more than 50 sightings of the woman’s vehicle across several states. Only later did the deputy observe an infraction, pull her over, and make the drug arrest.
Hill, a former President Biden appointee, framed the problem as persistent tracking without a proper predicate. The ruling does not brand every Flock-aided arrest illegal. It holds that, on these facts, the officer lacked probable cause to intrude on a reasonable expectation of privacy with that technology.
Hill’s order treated long-term, passive location logging as different from a routine roadside check. She wrote that freedom from “persistent, dragnet-style surveillance while in public” is already a reasonable expectation society accepts.
"Freedom from persistent, dragnet-style surveillance while in public is not a foreign concept in our society, and it is a reasonable expectation that society already accepts,"
Hill continued in the same vein on the danger of open-ended retention and reuse.
"But it becomes constitutionally problematic when law enforcement can indiscriminately and passively catalog your whereabouts over an extended period of time and then use that information for any purpose whenever convenient."
That is the core of the Fourth Amendment fight here. The cameras sit in public. The constitutional heat comes from stacking sightings over time, then letting an officer query the pile before he has a concrete reason tied to that driver.
Flock’s automated license plate readers log plate numbers and a “vehicle signature”, make, model, and other identifying features. The company says the cameras do not collect biometric data on occupants. The deputy in this case also had access to VehicleManager, a system under Motorola Solutions.
After the out-of-state plate caught his eye, the database pull produced the multi-state trail of more than 50 hits. The stop and drug arrest followed the later traffic infraction. Motorola Solutions did not immediately respond to questions about the ruling.
For taxpayers and lawful drivers, the practical question is simple. Can an officer treat a plate from another state as enough reason to mine a national-style location history before he has probable cause? Hill said that approach, on this record, went too far.
Flock did not concede the constitutional point. A company spokesperson said the ruling conflicts with the weight of authority in similar cases, including recent decisions in Oklahoma, and predicted an appeal and reversal.
"The ruling goes against the overwhelming weight of authority in similar cases across the country, including multiple recent decisions in Oklahoma, and we expect it will be appealed and ultimately overturned."
The same spokesperson stressed limits on the holding’s reach and defended continued police use of the tools.
"This ruling is limited to the specific facts of this case. It does not set controlling precedent and does not affect law enforcement agencies’ continued use of these important public safety technologies,"
Those are competing claims. Hill entered a Fourth Amendment ruling tied to probable cause and privacy. Flock calls the order fact-bound, out of step with other courts, and temporary. The dispute is now teed up for appellate review.
Pressure on the technology is not confined to one Oklahoma courtroom. Over the past two months, Texas Gov. Greg Abbott and Florida Gov. Ron DeSantis have taken steps to limit use of the systems in their states. A growing number of municipalities have ended contracts with Flock.
In Washington, Sen. Bernie Sanders, Sen. Jeff Merkley, and Rep. Alexandria Ocasio-Cortez unveiled legislation that would bar federal agencies from using the AI surveillance technology and pause federal grant money for local departments seeking contracts with ALPR manufacturers. That bill comes from the left. The state-level brakes in Texas and Florida show Republican executives are not rubber-stamping boundless camera networks either.
Conservatives have long argued that constitutional order means both enforcing the law and policing the police power. Dragnet databases that log ordinary travel create an obvious temptation: run the plate first, invent the theory later. Hill’s opinion lands on that incentive problem, even if Flock insists other courts have blessed similar tools and will do so again.
Readers should keep the holding in scale. The decision addresses warrantless reliance on extensive ALPR histories without adequate probable cause in this Tulsa County sequence. It does not declare that license-plate cameras are outlawed, and it does not wipe out every arrest that touched Flock data.
It does raise the bar for fishing expeditions. Noticing an out-of-state plate, pulling a multi-state sighting history, and only afterward spotting a traffic infraction is the pattern the court treated as constitutionally problematic. Public safety technology is not a blank check to catalog motorists “whenever convenient.”
Lawful residents have a stake in streets that are safe and in a government that still needs a real reason before it reconstructs where someone has been for weeks. Those goals are not opposites. They are the same constitutional bargain.
When the state can rebuild a driver’s movements on demand, the warrant requirement is not a technicality, it is the last brake on convenience-driven power.
