ShotSpotter

Our Take

This clip, straight from the Milwaukee Police Department's own channel, is essentially a promotional reel for ShotSpotter — the acoustic gunshot detection system that's been sold to cities for over a decade as a narrow public-safety tool. What departments rarely advertise is how these microphone networks often get bundled with camera infrastructure, expanded data-sharing agreements, and quietly renewed contracts long after the cameras that were supposed to accompany them fade from public memory. Milwaukee is far from alone here, and that's exactly the point.

Gunshot detection tech has a documented history of false positives, opaque algorithms, and disproportionate deployment in over-policed neighborhoods. Cities have dropped contracts with these vendors after audits found the systems rarely led to evidence of a gun-related crime, yet the microphones and the political appetite for "more coverage" tend to stick around. When a police department produces its own glowing video about a surveillance tool, that's a cue for residents to ask what else came bundled into the deal — and who's watching the watchers.

If you're in Milwaukee or anywhere else wondering what's actually listening or watching on your block, check our camera map to see what's been documented near you, and visit our take-action page for concrete steps to push back on unchecked surveillance expansion in your city council.