I don't know about the accuracy of these sensors or the statistics cited, but having lived in and around Chicago for over 20 years, including 2 years on the sou

I don't know about the accuracy of these sensors or the statistics cited, but having lived in and around Chicago for over 20 years, including 2 years on the south side, there are a lot of shootings. Summers are especially bad. Most weekends have double digit body counts. I don't know how many gun shots I've heard in Chicago over the years, but I can tell you how many cars back firing I've heard: zero. I've also heard a ton of fireworks. Southside around the 4th of July? Looks and sounds like a warzone. At least it did down near Bronzeville when I lived there. And before you question my ability to discern a difference, I can. I grew up shooting rifles & shotguns and happened to have a vehicle that back fired with some regularity. Gun shits tend to have a sharper report, a back fire lasts longer, a bit "boomier". And while I like the concept behind ShotSpotter, the company, it's methods and its data governance are... Shoddy. That's probably the most charitable I can put it from what I've read about them.