A lawsuit filed in Waukesha County Circuit Court argues that police should need a warrant before searching the Flock Safety license plate network. The Wisconsin Institute for Law and Liberty brought the case against 12 municipalities and Waukesha County, asking a judge to declare that warrantless queries of the database violate the Fourth Amendment.
The firm points to officers misusing plate reader systems in Wisconsin and across the country as evidence that oversight is missing. Its deputy counsel, Dan Lennington, said a warrant requirement is the check the Constitution intends when police reach for tools that track daily movement.
The Security Industry Association pushed back a day before the suit landed. The trade group called for tighter safeguards, including documented reasons for searches, regular audits and penalties for misuse, but drew a line at warrants. Chief executive Don Erickson argues that plate readers record vehicles on public roads, and the association contends a warrant requirement would make the technology untenable for routine investigations and emergencies.
Critics reject that framing. IPVM notes that Flock runs more than 120,000 networked cameras producing tens of billions of scans each month, and that pooled reads can rebuild a driver’s travel history.
The litigation follows a USA TODAY investigation that found at least 19 police and sheriff’s employees in five states arrested, fired, suspended or investigated over improper plate reader searches within two months. An Albany County, New York, investigator was accused of more than 4,000 unauthorized queries, roughly 3,000 of them involving a former girlfriend.
Flock has adjusted its own rules, defaulting new law enforcement customers to seven-day retention and making case codes and misuse detection mandatory by the end of the year.
