Lawsuit: Chicago police misused ShotSpotter in murder case

Our Take

Credit to WGN News for digging into this: a federal lawsuit now claims Chicago police used "unreliable" gunshot-detection alerts from ShotSpotter as a shortcut to pin a murder on someone, allegedly ignoring other leads in the process. This is the exact failure mode we keep warning about with automated surveillance tools — they get sold to cities as objective, scientific, and infallible, and then quietly become the backbone of a case that never gets the scrutiny it deserves.

ShotSpotter and Flock's ALPR network are different technologies, but they share the same core problem: a black-box system generates an "alert," police treat it as ground truth, and the underlying error rate, vendor bias, or misfire never gets litigated until someone's already in handcuffs. Flock's cameras are logging millions of plate scans a day with zero independent audits of their accuracy or misuse, feeding into investigations the same way ShotSpotter data reportedly did here — as a substitute for actual police work rather than one input among many.

Cities keep buying these systems on faith, and lawsuits like this one are what it takes to force a public reckoning. If you want to see how far this kind of camera surveillance has spread in your own neighborhood, check our camera map, and if you want to push back on unaccountable tech in your city, our take-action page has a place to start.