The Illinois Detention Screening Instrument (IDs) is a risk assessment tool developed by the Illinois Juvenile Justice Commission for use in juvenile justice decision-making. It is designed to predict the likelihood of a juvenile’s recidivism and to inform decisions about pre-trial detention. The IDs are used by juvenile court personnel to make decisions about whether a juvenile should remain in detention or be released pending a court hearing. The IDs consist of two parts. The first part is a questionnaire that assesses seven risk factors: age, gender, criminal history, education/employment, family/community support, mental health/substance abuse, and the severity of the current offense. The second part is a scoring system that assigns a risk score based on the answers to the questionnaire. There are three versions of the IDs: the Standard Version, the Enhanced Version, and the Risk-Needs Version. The Standard Version is the most commonly used, and it is used to evaluate juveniles who are arrested on felony offenses. The Enhanced Version is used for juveniles who have been arrested for misdemeanors or status offenses. The Risk-Needs Version is used for juveniles who are arrested for felony offenses and have previously been arrested for a felony offense.