From "Police Are Telling ShotSpotter to Alter Evidence From Gunshot-Detecting AI" by Todd Feathers (Motherboard, 2021-07-26):
During the trial, Greene testified under cross-examination that the initial ShotSpotter alert only indicated two gunshots (those fired by an officer in response to the original shooting). But after Chicago police contacted ShotSpotter, Greene re-analyzed the audio files.
"An hour or so after the incident occurred, we were contacted by Chicago PD and asked to search for -- essentially, search for additional audio clips. And this does happen on a semi-regular basis with all of our customers," Greene told the court, according to a transcript of the trial. He later ruled that there were five additional gunshots that the company's algorithms did not pick up.
Also, later in the same article:
"These tools are sending more police into Black and Latinx neighborhoods," Alyx Goodwin, a Chicago organizer with the Action Center on Race and the Economy, one of the groups leading the campaign, told Motherboard. "Every ShotSpotter alert is putting Black and Latinx people at risk of interactions with police. That's what happened to Adam Toledo."'
Motherboard recently obtained data demonstrating the stark racial disparity in how Chicago has deployed ShotSpotter. The sensors have been placed almost exclusively in predominantly Black and brown communities, while the white enclaves in the north and northwest of the city have no sensors at all, despite Chicago police data that shows gun crime is spread throughout the city.