Profile Picture Jonathan Levy

created Apr 6 2021

updated Jul 17 2024

Description

This dataset contains all ShotSpotter alerts since the introduction of ShotSpotter to some Chicago Police Department (CPD) districts in 2017. ShotSpotter is a gunshot detection system designed to automatically determine the location of potential outdoor gunfire. ShotSpotter audio sensors are placed in several CPD districts throughout the city (specific districts are noted below). If at least three sensors detect a sound that the ShotSpotter software determines to be potential gunfire, a location is determined and the alert is sent to human ShotSpotter analysts for review. Either the alert is sent to CPD, or it is dismissed. Each alert can contain multiple rounds of gunfire; sometimes there are multiple alerts for what may be determined to be one incident. More detail on the technology and its accuracy can be found on the company’s website here. It should also be noted that ShotSpotter alerts may increase year-over-year while gun violence did not necessarily increase accordingly because of improvements in detection sensors.
ShotSpotter does not exist in every CPD district, and it was not rolled out in every district at the same time. ShotSpotter was first deployed in Chicago in 2017, and sensors exist in the following districts as of the May 2021 launch of this dataset: 002, 003, 004, 005, 006, 007, 008, 009, 010, 011, 015, and 025.

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Category
Public Safety
Permissions
Public
Tags
police, public safety, violence reduction
Row Label
Shotspotter Alert
SODA2 Only
Yes
Licensing and Attribution
Data Provided By
City of Chicago
Source Link
https://www.chicago.gov
License
See Terms of Use
Permanent Links
Resource Name
(none)
Row Identifier
UNIQUE_ID
Metadata
Data Owner
Chicago Police Department
Time Period
2017 - Current
Frequency
Updated Daily
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