Chicago has shut down the use of predictive policing models known as the Strategic Subject List (SSL) and Crime and Victimization Risk Model (CVRM). The general areas of concern in the PTV risk model program include: the unreliability of risk scores and tiers; improperly trained sworn personnel; a lack of controls for internal and external access; interventions influenced by PTV risk models which may have attached negative consequences to arrests that did not result in convictions; and a lack of a long-term plan to sustain the PTV models.

Read the advisory on this report here.

Read the full report on these experimental models here.

Read a Chicago Tribune article on this topic here.