A widely used criminal risk assessment tool called the Correctional Offender Management Profiling for Alternative Sanctions, or COMPAS, has been used by police and judges to predict the risk of recidivism amongst more than 1 million offenders since its development in 1998. The software predicts the likelihood that a convicted criminal will reoffend within two years based upon data including 137 of the individuals physical features and past criminal records. [21]