>they then used that arrest data to make decisions about where to perform future searches and arrests. Because they found drugs where they had looked previously

>they then used that arrest data to make decisions about where to perform future searches and arrests. Because they found drugs where they had looked previously, they looked there again and found more drugs. This creates a bad feedback loop where they were basically busting the same neighborhoods and demographics over and over again This process is already a common complaint of police, without predictive software.