Before defending it too strongly, take a look at their article on where the pickups are being placed [0] and in the section on Chicago zoom in on the map. It's

Before defending it too strongly, take a look at their article on where the pickups are being placed [0] and in the section on Chicago zoom in on the map. It's ASTONISHING how well it lines up with the demographics. Looking through on the map, it looks like the census blocks with both ShotSpotter and >=50% white are one in CA-17 (Dunning), two in CA-60 (Bridgeport), two in CA-61 (New City), five in CA-41 (Hyde Park, University of Chicago area), five in CA-56 (Garfield Ridge) and four in CA-64 (Clearing). Those last 9 census blocks are part of a little largely-white enclave around and to the west of Midway airport and just north of the rail yards. (CA refers to Community Areas in Chicago, see [1]) I think it's notable that there are a total of 19 majority-white areas in the city with ShotSpotter tech - not with widespread installations, areas that have them at all. If you want to shoot someone in Chicago and not have it picked up by these devices, just head to Lincoln Park - looks like it's a couple miles from there to the nearest audio pickup. [0] https://www.vice.com/en/article/88nd3z/gunshot-detecting-tech-is-summoning-armed-police-to-black-neighborhoods https://www.vice.com/en/article/88nd3z/gunshot-detecting-tec... - don't forget to click the "visible layers" button and turn on the "gun crime" locations layer as well. [1] https://en.wikipedia.org/wiki/Community_areas_in_Chicago https://en.wikipedia.org/wiki/Community_areas_in_Chicago