CHICAGO (CBS/AP) — Community groups are arguing in a new court filing that the gunshot detection system that set in motion the recent fatal police shooting of a 13-year-old Adam Toledo in Chicago routinely reports gunshots where there are none.

They say that sends officers into predominantly Black and Latino neighborhoods for “unnecessary and hostile” encounters.

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The groups and the MacArthur Justice Center at Northwestern University’s law school are asking a Cook County judge in a Monday filing to scrutinize the ShotSpotter system to determine if it is “sufficiently trustworthy” to be allowed as evidence in a criminal case.

ShotSpotter and police officials defend the system, which they say allows officers to quickly respond to gunfire, even if no one calls 911.

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