Description: A Milwaukee County criminal complaint alleges that Police Detective Tehrangi Chapman used Flock Safety license-plate readers 20 times to track two people from January 2024 to January 2025, entering "test" or "training" as search reasons. The complaint says Chapman later admitted using Flock to track both people in violation of Milwaukee Police Department policy. He was charged with misconduct in public office; a separate count concerned an unauthorized GPS tracker.
Editor Notes: (1) 01/10/2024–01/03/2025: documented Flock searches of Victim Four. (2) 01/07/2025: three searches of Victim Three; the complaint does not state how the two targets were connected. (3) 02/05/2026: Victim Four contacted MPD Internal Affairs; a department audit subsequently surfaced Chapman's Flock use. (4) 05/29/2026: Chapman was interviewed and admitted policy-violating Flock use. (5) 07/08/2026: criminal complaint filed. (6) 09/23/2026, incident ID created.
Entities
View all entitiesAlleged: Flock Safety , Automated license plate reader (ALPR) developers and Surveillance technology developers developed an AI system deployed by Tehrangi Chapman , Law enforcement , Police departments in the United States and Milwaukee Police Department, which harmed Victim three in Tehrangi Chapman investigation , Victim four in Tehrangi Chapman investigation , Individuals subjected to unauthorized surveillance and Privacy.
Alleged implicated AI systems: Flock Safety automated license plate reader system , Automated license plate readers (ALPR) and Surveillance technology
Incident Stats
Incident ID
1706
Report Count
2
Incident Date
2024-01-10
Editors
Daniel Atherton
Incident Reports
Reports Timeline
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Matthew J. Torbenson post-incident response
Criminal Complaint
State of Wisconsin Circuit Court, Milwaukee County
State of Wisconsin v. Tehrangi N. Chapman
DA Case No.: 2026ML017065
Court Case No.: 2026CF003239
Count One: Misconduct in Public Office (Act in Excess of Lawful Authority…
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Another member of the Milwaukee Police Department has been charged with allegedly misusing the department's license plate camera reader system.
Milwaukee Police Detective Tehrangi Chapman was charged Wednesday with misconduct in public offi…
Variants
A "variant" is an AI incident similar to a known case—it has the same causes, harms, and AI system. Instead of listing it separately, we group it under the first reported incident. Unlike other incidents, variants do not need to have been reported outside the AIID. Learn more from the research paper.
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