Navigating the Juvenile Justice System Arrests Page Courts Page Detention Page Parol and Probation Page Resources Page Learn More Learn More About Project NIA Email Us! Chicago Youth Justice The Juvenile Justice System Diagram Illinois_Zip_Codes_greater_than_10_Parolees_with_Cities Cook Detention Admissions 2009 by zip April 2010 Map of Illinois Youth Centers and Youth Detention Centers Cook_County_Zip_with_Greater_than_10_Parolees