Chicago CPD Heroin Possession Vs Sale

Comparing the difference between Sale vs. Possession within CPD heroin related incident reports.
The data is from data.cityofchicago.org

The following Narcotics descriptions were included in this comparison
narcotics cats

Below are two static maps and a video (click for higher resolution).
Chicago CPD Heroin Possession Vs Sale

Chicago CPD Heroin Heat

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