(720 ILCS 5/31-6) (from Ch. 38, par. 31-6)
    Sec. 31-6. Escape; failure to report to a penal institution or to report for periodic imprisonment.
    (a) A person convicted of a felony or charged with the commission of a felony, or charged with or adjudicated delinquent for an act which, if committed by an adult, would constitute a felony, who intentionally escapes from any penal institution or from the custody of an employee of that institution commits a Class 2 felony; however, a person convicted of a felony, or adjudicated delinquent for an act which, if committed by an adult, would constitute a felony, who knowingly fails to report to a penal institution or to report for periodic imprisonment at any time or knowingly fails to return from furlough or from work and day release or who knowingly fails to abide by the terms of home confinement is guilty of a Class 3 felony.
    (b) A person convicted of a misdemeanor or charged with the commission of a misdemeanor, or charged with or adjudicated delinquent for an act which, if committed by an adult, would constitute a misdemeanor, who intentionally escapes from any penal institution or from the custody of an employee of that institution commits a Class A misdemeanor; however, a person convicted of a misdemeanor, or adjudicated delinquent for an act which, if committed by an adult, would constitute a misdemeanor, who knowingly fails to report to a penal institution or to report for periodic imprisonment at any time or knowingly fails to return from furlough or from work and day release or who knowingly fails to abide by the terms of home confinement is guilty of a Class B misdemeanor.
    (b-1) A person committed to the Department of Human Services under the provisions of the Sexually Violent Persons Commitment Act or in detention with the Department of Human Services awaiting such a commitment who intentionally escapes from any secure residential facility or from the custody of an employee of that facility commits a Class 2 felony.
    (c) A person in the lawful custody of a peace officer for the alleged commission of a felony offense or an act which, if committed by an adult, would constitute a felony, and who intentionally escapes from custody commits a Class 2 felony; however, a person in the lawful custody of a peace officer for the alleged commission of a misdemeanor offense or an act which, if committed by an adult, would constitute a misdemeanor, who intentionally escapes from custody commits a Class A misdemeanor.
    (c-5) A person in the lawful custody of a peace officer for an alleged violation of a term or condition of probation, conditional discharge, parole, or mandatory supervised release for a felony or an act which, if committed by an adult, would constitute a felony, who intentionally escapes from custody is guilty of a Class 2 felony.
    (c-6) A person in the lawful custody of a peace officer for an alleged violation of a term or condition of supervision, probation, or conditional discharge for a misdemeanor or an act which, if committed by an adult, would constitute a misdemeanor, who intentionally escapes from custody is guilty of a Class A misdemeanor.
    (d) A person who violates this Section while armed with a dangerous weapon commits a Class 1 felony.
(Source: P.A. 95-839, eff. 8-15-08; 95-921, eff. 1-1-09; 96-328, eff. 8-11-09.)