Juvenile Justice System and Risk Factor Data - Illinois Criminal ...

There was a decrease in the rate of delinquency petitions continued under supervision from 1997
to 2007, decreasing 44 percent from 316 per 100,000 youth ages 10 to 16 in 1997 to 177 in 2007.
The state rate decreased 62 percent from 460 in 2002. However, Cook County did not report
delinquency petitions continued under supervision to the Administrative Office of the Illinois
Courts in 2007. Without 2007 data from Cook County, statewide trends are difficult to identify.
Examining statewide trends excluding Cook County show an overall decrease, although there
has been a slight increase since 2002. Between 1997 and 2007, the statewide rate decreased 33
percent from 442 delinquency petitions continued under supervision per 100,000 youth ages 10
to 16 in 1997 to 298 in 2007. However, between 2002 and 2007, the rate increased 9 percent
from 274 to 298.
All regions in Illinois experienced a decrease in the rate of delinquency petitions continued under
supervision during the ten years examined. Central Illinois remained relatively stable, decreasing
26 percent between 1997 and 2007, and increasing 8 percent from 2002 to 2007. Northern
Illinois rates, not including Cook County, decreased 42 percent from 1997 to 2007, and increased
36 percent from 2002.
Map 8 depicts the rate changes of cases continued under supervision by county between 2002
and 2007.
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