> Wasn't the Shot Spotter thing pretty useless in reality though? Depends on what you define as "useless". It was objectively bad at identifying gunshots (th

> Wasn't the Shot Spotter thing pretty useless in reality though? Depends on what you define as "useless". It was objectively bad at identifying gunshots (the precision and recall were horrendous) and at reducing gun violence. But it was really good at manufacturing probable cause, because the false positive rate was so high that police could use the sound of a dumpster lid closing as a legal reason to detain and search anyone who they wanted in that general area.