NPR

Chicago will drop controversial ShotSpotter gunfire detection system

Chicago Mayor Brandon Johnson followed through on his campaign promise by announcing the city won't renew the contract for the system, which critics have called ineffective and costly.

ShotSpotter is a surveillance technology that uses acoustic sensors to detect and locate gunshots, alerting law enforcement in real-time. But it's been met with controversy for not only being very costly, but allegedly inaccurate, ineffective, and even biased.

On Tuesday, Chicago Mayor Brandon Johnson, who campaigned against ShotSpotter, that the city won't be renewing its contract with SoundThinking (formerly called ShotSpotter),

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