ALPR ABUSE ARCHIVE

William C. Copp

Authorities’ allegations and reported case history are preserved alongside source provenance.

IL-PRAIRIE-GROVE-COPP-2026-06-17

William C. Copp

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.

1 linked source Last verified August 25, 2026

//Person

Name
William C. Copp
Role title
Part-time Police Officer / Police Chief in neighboring municipality
Role type
Sworn law enforcement
Agency
Prairie Grove Police Department
City
Prairie Grove
County
McHenry
State
Illinois

//Current status

Status
Arrested / Charged
Employment outcome
Fired from Prairie Grove
Arrest date
June 17, 2026
Jail
Unknown
Case-status notes
Copp also served as police chief of Holiday Hills. His status there was under review when the charges were reported.

//Alleged conduct and technology

Why this case is in the database
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.
Technology type
Other; Automated License Plate Reader
Reported vendor
Flock Safety
Reported product
Unknown
Misuse start
2024-02
Misuse end
2025-11
Known alleged search count
Hundreds
Known duration
1.8 years
Former romantic partnersNon-law-enforcement useStalking / tracking alleged

//Discovery and investigation

Discovery method
Criminal investigation / review of system records
Investigating agency
McHenry County authorities
ALPR vendor
Flock Safety
Known charge count
2
Charges
2 counts Official Misconduct

//Timeline

June 19, 2026
Charges updated
2 counts Official Misconduct
June 19, 2026
Criminal investigation / review of system records
Copp also served as police chief of Holiday Hills. His status there was under review when the charges were reported.
June 19, 2026
Terminated
Copp also served as police chief of Holiday Hills. His status there was under review when the charges were reported.
June 19, 2026
Arrested / Charged
Copp also served as police chief of Holiday Hills. His status there was under review when the charges were reported.
June 17, 2026
Arrested / Charged
Copp also served as police chief of Holiday Hills. His status there was under review when the charges were reported.

//Sources