Drug sentences to corrections by offense class
The offense class for drug crimes in DuPage County (which includes offenders arrested by
DUMEG) also was examined. Class 4 felonies accounted for the largest proportion (53 percent)
of sentences to IDOC for drug offenses during the period studied, followed by Class 1 felonies
(21 percent), Class X felonies (18 percent), Class 2 felonies (4 percent) and Class 3 felonies (4
percent). Jail data is not currently available by offense type.
Between 2000 and 2009, the number of Class 4 felony sentences in DuPage County nearly
doubled, from 67 to 124, while Class 1 felony sentences tripled from 20 to 64, Class 2 felony
sentences increased from seven to 11, and Class 3 felony sentences rose slightly from 10 to 11.
The number of Class X felonies increased 64 percent, from 25 to 41, during the same period.
Drug sentences to corrections by sentence length
An offender can be sentenced for a Class 4 felony to a period of incarceration from one to three
years in the Illinois Department of Corrections (IDOC). The incarceration length for a Class 3
felony is two to five years and a Class 2 felony is three to seven years in IDOC. The length of
incarceration in IDOC for a Class 1 felony is four to 15 years. A person who pleads guilty to or
is found guilty of a Class X felony can be sentenced to a minimum of 6, 9, 12, or 15 years
depending on the amount of the drug, and a maximum of 30 years extendable in certain cases to
According to IDOC, the mean sentence length for Class 4 felony drug offenders has slightly
increased, from 1.8 to 1.9 years. The mean sentence length for Class X felony drug offenders
decreased from 8.9 to 8.8 years. Mean sentence length for Class 3 felony drug offenders in
Illinois increased, from 2.9 to 3.0 years. Class 2 felony drug offender mean sentence lengths
increased from 4.0 to 4.2 years and Class 1 drug offender mean sentence length increased from
5.1 to 5.5 years.
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