Watchdog: ShotSpotter rarely leads to evidence of gun crimes, investigatory stops

Police investigate the murder of a young man found shot to death in the back seat of a bullet-riddled car on June 30, 2017 in Chicago, Illinois. More than 300 people have been killed and more than 1700 wounded by gunfire in Chicago this year. On June 1, a task force was formed by the Chicago police, Illinois state police and the ATF to combat the gun violence in the city. ATF has formed similar task forces on a temporary basis to fight regional spikes in gun violence. Chicago's task force is the only one in the nation formed with the idea to be permanent.
Police investigate the murder of a young man found shot to death in the back seat of a bullet-riddled car on June 30, 2017 in Chicago, Illinois. Photo credit Scott Olson/Getty Images

CHICAGO (WBBM NEWSRADIO) -- The city’s watchdog issued a report Tuesday that found ShotSpotter technology used by Chicago police rarely leads to investigatory stops or evidence of gun crimes and can change the way officers interact with areas they’re charged with patrolling.

The city’s Office of the Inspector General found that CPD data it examined “does not support a conclusion that ShotSpotter is an effective tool in developing evidence of a gun-related crime.”

Mayor Lori Lightfoot and Supt. David Brown have continued to publicly support the department’s use of the technology.

“If the Department is to continue to invest in technology which sends CPD members into potentially dangerous situations with little information — and about which there are important community concerns — it should be able to demonstrate the benefit of its use in combating violent crime,” Deputy Inspector General for Public Safety Deborah Witzburg said.

The city’s three-year, $33 million contract with the Silicon Valley-based startup was initially supposed to expire last Thursday. But the deal was extended last December for two additional years at the request of the police department.

The CPD’s use of ShotSpotter came under increased scrutiny following the death of 13-year-old Adam Toledo, who was shot and killed in March by a Chicago police officer responding to an alert from the system. Toledo’s hands were empty when the fatal shot was fired, though he was seen on the officer’s body-worn camera holding a pistol a moment earlier.

Featured Image Photo Credit: Scott Olson/Getty Images