None that are public (that I'm aware of), but it's just a matter of time. We just got ShotSpotter alerts put up on the Chicago data portal. But to make it less

None that are public (that I'm aware of), but it's just a matter of time. We just got ShotSpotter alerts put up on the Chicago data portal. But to make it less difficult to believe, I'll point you too LEMART training [1], an emergency first aid course that many patrol officers elect to take, and that many officers carry a first aid kit [2]. Considering ShotSpotter alerts officers (many of which are capable of administering emergency first aid) to shootings (many of which have no corresponding 911 call for service), it's not too hard to accept the weak claim that a nonzero number of lives have been saved. I won't speculate on the number as I haven't done a rigorous analysis, but I know of a lot of shootings where the responding officer was notified by ShotSpotter, administered first aid (normally a tourniquet), and the victim survived. Edit: just found a public number for the number of officers who have received LEMART training. Over 6000 officers as of 1/21/2020 [3]. For reference, there are about 13k sworn CPD officers. [0] https://data.cityofchicago.org/Public-Safety/Violence-Reduction-Shotspotter-Alerts/3h7q-7mdb https://data.cityofchicago.org/Public-Safety/Violence-Reduct... [1] https://www.chicagocopa.org/wp-content/uploads/2018/04/Policy-Report-re-First-Aid-Policy-Training-Equipment.pdf https://www.chicagocopa.org/wp-content/uploads/2018/04/Polic... [2] https://directives.crimeisdown.com/diff/efaff1a7e94a8ad642c793993e0d6701c1d276fd/directives/data/a7a57b38-1488e40c-5eb14-88e6-c8b737ad46ecc09a.html https://directives.crimeisdown.com/diff/efaff1a7e94a8ad642c7... [3] https://twitter.com/chicago_police/status/1219747858469003265 https://twitter.com/chicago_police/status/121974785846900326...