A now former Joliet police officer has been accused of abusing the Flock license plate reader database, according to Illinois State Police.
Jeremy Harrison, 50, faces a charge of computer tampering and official misconduct in Will County, according to Illinois State Police, which conducted the investigation after accusations were made against Harrison.
Court documents say the alleged offense occurred July 23, 2025, when Harrison was serving as a lieutenant with the Joliet Police Department.
Investigators offered no other details on the case. Harrison is due back in court Nov. 17, per court records.
Harrison makes for at least the third known case of a law enforcement being accused of misusing the database that tracks millions of drivers’ real-time locations in Will County this year.
Fellow Will County municipality Channahon said it was reviewing its use of Flock cameras after an investigation found that its officers may also made unauthorized searches. The accused officers were placed on leave as an investigation continues.
Around the same time, a Will County sheriff’s deputy was placed on administrative leave amid allegations he misused the technology, leading southwest suburban Homer Glen to announce it was suspending the use of Flock cameras within its borders “pending final determination of the investigation and review of the Sheriff’s ALPR protocol.”
It also comes a day after similar charges were leveled against now former Itasca cop Marisa Ciccola and ex-West Chicago officer Gerardo Solis, which prompted West Chicago also to review its use of the technology. Ciccola alone is charged with 13 felony counts of official misconduct and eight counts of computer tampering for allegations she made unauthorized searches multiple times over the span of a year.
Earlier this year, part-time Prairie Grove officer William Copp, who was also serving as the chief of police for Holiday Hills, was accused of abusing the system to stalk people he knew via nearly 250 unauthorized searches of their license plate movements. Copp also faces multiple felony official misconduct charges.
Frank McGrath, a former Kenosha County sheriff’s deputy, was charges in August after an internal audit revealed he’d used Flock to spy on a co-worker, according to the agency.