ALPR ABUSE ARCHIVE

Illinois

State-level aggregate case statistics and published cases.

8
Documented cases
8
Agencies
1
People arrested
3
People fired

//Cases

Unnamed Channahon Police Officer

Channahon Police Department · Channahon, Will, Illinois
Under Internal Investigation Administrative leave Automated License Plate Reader Non-law-enforcement use allegedUnauthorized search

An unnamed Channahon police officer was reported under investigation for alleged unauthorized use of the Flock license plate reader system.

Cohen Piechocinski

Palos Park Police Department · Palos Park, Cook, Illinois
Substantiated Unauthorized Use / Discipline Review Flock access revoked Records / Intelligence DatabaseAutomated License Plate Reader Non-law-enforcement usePersonal searchSelf-searchUnauthorized search

Department records indicated Piechocinski conducted 11 unauthorized Flock searches involving his own personal vehicles.

Terrance Mastrino

Berkeley Police Department · Berkeley, Cook, Illinois
Substantiated Internal Misconduct Resigned Internal investigation found Mastrino used Flock in 2025 to search the plate of a former employer. The plate owner later contacted the police chief, prompting an audit.Automated License Plate Reader Former employerNon-law-enforcement usePersonal searchUnauthorized search

Internal investigation found Mastrino used Flock in 2025 to search the plate of a former employer. The plate owner later contacted the police chief, prompting an audit.

Unnamed Itasca officer

Itasca Police Department · Itasca, DuPage, Illinois
Substantiated Misuse Fired Records / Intelligence DatabaseAutomated License Plate Reader Non-law-enforcement use

Officer was fired for an unspecified Flock violation after a news organization requested misuse records.

Jeremy Harrison

Joliet Police Department · Joliet, Will, Illinois
Substantiated Internal Misconduct Fired Harrison was fired after using Flock cameras to track the location of a female police officer.Automated License Plate Reader CoworkerNon-law-enforcement useTracking

Harrison was fired after using Flock cameras to track the location of a female police officer.

Agency-level incident

Illinois law-enforcement ALPR network · Springfield, Sangamon, Illinois
State Audit Found Violation An Illinois Secretary of State audit found Customs and Border Protection gained access to Illinois license-plate camera data in violation of state law.Automated License Plate Reader Immigration enforcementStatutory violationUnauthorized data sharing

An Illinois Secretary of State audit found Customs and Border Protection gained access to Illinois license-plate camera data in violation of state law.

Jaila Cole-Clark

Matteson Police Department · Matteson, Cook, Illinois
Substantiated Misuse / Resigned Resigned Internal documents reportedly showed Cole-Clark ran hundreds of Flock searches for a former domestic partner and that person's new partner.Automated License Plate Reader Former domestic partnerNon-law-enforcement useRomantic rivalTracking

Internal documents reportedly showed Cole-Clark ran hundreds of Flock searches for a former domestic partner and that person's new partner.

William C. Copp

Prairie Grove Police Department · Prairie Grove, McHenry, Illinois · June 17, 2026
Arrested / Charged Fired from Prairie Grove OtherAutomated License Plate Reader Former romantic partnersNon-law-enforcement useStalking / tracking alleged

Prosecutors alleged Copp used Flock and other law-enforcement systems hundreds of times to track people he knew, including former romantic partners and at least one new partner of a former romantic partner.