ILCS » Chapter 720 · Act 5
Illinois Compiled Statutes

720 ILCS 5/11-11 (2026)

Sexual Relations Within Families

✓ current as of May 2026
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(720 ILCS 5/11-11) (from Ch. 38, par. 11-11)
    Sec. 11-11. Sexual Relations Within Families.
    (a) A person commits sexual relations within families if he or she:
        (1) Commits an act of sexual penetration as defined
    
in Section 11-0.1 of this Code; and
        (2) The person knows that he or she is related to the
    
other person as follows: (i) Brother or sister, either of the whole blood or the half blood; or (ii) Father or mother, when the child, regardless of legitimacy and regardless of whether the child was of the whole blood or half-blood or was adopted, was 18 years of age or over when the act was committed; or (iii) Stepfather or stepmother, when the stepchild was 18 years of age or over when the act was committed; or (iv) Aunt or uncle, when the niece or nephew was 18 years of age or over when the act was committed; or (v) Great-aunt or great-uncle, when the grand-niece or grand-nephew was 18 years of age or over when the act was committed; or (vi) Grandparent or step-grandparent, when the grandchild or step-grandchild was 18 years of age or over when the act was committed.
    (b) Sentence. Sexual relations within families is a Class 3 felony.
(Source: P.A. 96-233, eff. 1-1-10; 96-1551, eff. 7-1-11.)

    
Notes of Decisions
Cited in 8 cases (4 in the last 5 years), 1993–2025 · leading case: Meh v. Lh, 669 N.E.2d 1228 (Ill. App. Ct. 1996).
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Meh v. Lh, 669 N.E.2d 1228 (Ill. App. Ct. 1996). “The complaint also alleged that their mother was liable for (1) intentional infliction of emotional distress and (2) breach of parental duty. The trial court granted the defendants' motion to dismiss, concluding that the general personal injury statute of limitations (735 ILCS…”
In Re Marriage of Mehring, 755 N.E.2d 109 (Ill. App. Ct. 2001). “(West 2000) (prohibiting parents from putting their children into the labor force). This list of civil interferences is not the only State action that restricts parental power.”
People v. Auler, 621 N.E.2d 288 (Ill. App. Ct. 1993). “11-11 (now 720 ILCS 5/11-11 (West 1992))). The legislature made no distinction, based on family ties, between subsections (b) and (c)(1)(i) when it determined that the position-of-trust aggravating factor in section 5 — 5—3.”
People v. Hernandez-Pedraza, 2022 IL App (2d) 191123-U (Ill. App. Ct. 2022). “’s hand on his penis; three counts of sexual relations within families (720 ILCS 5/11-11(a) (West 2018)) for placing his penis in C.”
People v. Flynn, 2024 IL App (2d) 240262-U (Ill. App. Ct. 2024). “60(b) (West 2022)), a Class 2 felony; and (3) four counts of sexual relations within families (720 ILCS 5/11-11(a) (West 2022)), a Class 3 felony.”
People v. Tooley, 2024 IL App (2d) 240395-U (Ill. App. Ct. 2024). “60(e) (West 2022)), a Class 2 felony; (8) 4 counts of sexual relations with a family member (720 ILCS 5/11-11(a) (West 2022)), a Class 3 felony; and (9) 2 counts of aggravated battery of a person with a physical disability (720 ILCS 5/12-3.”
People v. Gamboa, 2025 IL App (4th) 241510-U (Ill. App. Ct. 2025). “20(a)(3) (West 2018) (count II)) and two counts of sexual relations within families (720 ILCS 5/11-11(a) (West 2020) (count III); 720 ILCS 5/11-11(a) (West 2018) (count IV)) for alleged criminal conduct perpetrated against M.”
In re Marriage of Mehring Opinion corrected August 23, 2001 (Ill. App. Ct. 2001). “, 720 ILCS 5/11-11 (West 2000) (prohibiting incest).”
— 720 ILCS 5/11-11(a) — 4 cases
People v. Hernandez-Pedraza, 2022 IL App (2d) 191123-U (Ill. App. Ct. 2022). “’s hand on his penis; three counts of sexual relations within families (720 ILCS 5/11-11(a) (West 2018)) for placing his penis in C.”
People v. Flynn, 2024 IL App (2d) 240262-U (Ill. App. Ct. 2024). “60(b) (West 2022)), a Class 2 felony; and (3) four counts of sexual relations within families (720 ILCS 5/11-11(a) (West 2022)), a Class 3 felony.”
People v. Tooley, 2024 IL App (2d) 240395-U (Ill. App. Ct. 2024). “60(e) (West 2022)), a Class 2 felony; (8) 4 counts of sexual relations with a family member (720 ILCS 5/11-11(a) (West 2022)), a Class 3 felony; and (9) 2 counts of aggravated battery of a person with a physical disability (720 ILCS 5/12-3.”
People v. Gamboa, 2025 IL App (4th) 241510-U (Ill. App. Ct. 2025). “20(a)(3) (West 2018) (count II)) and two counts of sexual relations within families (720 ILCS 5/11-11(a) (West 2020) (count III); 720 ILCS 5/11-11(a) (West 2018) (count IV)) for alleged criminal conduct perpetrated against M.”
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