Key Takeaways
Cameras and gunshot sensors, alone or together, did not improve case clearance for fatal or nonfatal shootings in Chicago. A 15-year, matched quasi-experimental study of 6,068 fatal and 64,884 nonfatal shootings (2005 to 2019) found null results across every treatment condition tested.
Shootings exposed to gunshot detection technology (GDT) were actually cleared at lower rates than matched control incidents (25.9% vs. 39.2% for fatal shootings; 25.1% vs. 30.6% for nonfatal shootings), though once the researchers controlled for other factors, the difference wasn’t statistically significant.
Camera coverage (CCTV) showed essentially no relationship to clearance for gun violence, consistent with prior research showing CCTV’s investigative benefits concentrate in theft and disorder cases, not shootings.
The one bright spot: Chicago’s Strategic Decision Support Centers (SDSCs), district-level hubs that combine technology with dedicated staff and crime analysts, were linked to 19% to 24% higher odds of clearance in nonfatal shooting cases.
— Read on policeresearchhub.com/why-shotspotter-case-clearance-depends-on-more-than-tech/