ILCS » Chapter 720 · Act 5
Illinois Compiled Statutes

720 ILCS 5/26-1 (2026)

Disorderly conduct

✓ current as of May 2026
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(720 ILCS 5/26-1) (from Ch. 38, par. 26-1)
    Sec. 26-1. Disorderly conduct.
    (a) A person commits disorderly conduct when he or she knowingly:
        (1) Does any act in such unreasonable manner as to
    
alarm or disturb another and to provoke a breach of the peace;
        (2) Transmits or causes to be transmitted in any
    
manner to the fire department of any city, town, village or fire protection district a false alarm of fire, knowing at the time of the transmission that there is no reasonable ground for believing that the fire exists;
        (3) Transmits or causes to be transmitted in any
    
manner to another a false alarm to the effect that a bomb or other explosive of any nature or a container holding poison gas, a deadly biological or chemical contaminant, or radioactive substance is concealed in a place where its explosion or release would endanger human life, knowing at the time of the transmission that there is no reasonable ground for believing that the bomb, explosive or a container holding poison gas, a deadly biological or chemical contaminant, or radioactive substance is concealed in the place;
        (3.5) Transmits or causes to be transmitted in any
    
manner a threat of destruction of a school building or school property, or a threat of violence, death, or bodily harm directed against persons at a school, school function, or school event, whether or not school is in session;
        (4) Transmits or causes to be transmitted in any
    
manner to any peace officer, public officer or public employee a report to the effect that an offense will be committed, is being committed, or has been committed, knowing at the time of the transmission that there is no reasonable ground for believing that the offense will be committed, is being committed, or has been committed;
        (5) Transmits or causes to be transmitted in any
    
manner a false report to any public safety agency without the reasonable grounds necessary to believe that transmitting the report is necessary for the safety and welfare of the public;
        (6) Calls or texts the number "911" or transmits or
    
causes to be transmitted in any manner to a public safety agency or public safety answering point for the purpose of making or transmitting a false alarm or complaint and reporting information when, at the time the call, text, or transmission is made, the person knows there is no reasonable ground for making the call, text, or transmission and further knows that the call, text, or transmission could result in the emergency response of any public safety agency;
        (7) Transmits or causes to be transmitted in any
    
manner a false report to the Department of Children and Family Services under Section 4 of the Abused and Neglected Child Reporting Act;
        (8) Transmits or causes to be transmitted in any
    
manner a false report to the Department of Public Health under the Nursing Home Care Act, the Specialized Mental Health Rehabilitation Act of 2013, the ID/DD Community Care Act, or the MC/DD Act;
        (9) Transmits or causes to be transmitted in any
    
manner to the police department or fire department of any municipality or fire protection district, or any privately owned and operated ambulance service, a false request for an ambulance, emergency medical technician-ambulance or emergency medical technician-paramedic knowing at the time there is no reasonable ground for believing that the assistance is required;
        (10) Transmits or causes to be transmitted in any
    
manner a false report under Article II of Public Act 83-1432;
        (11) Enters upon the property of another and for a
    
lewd or unlawful purpose deliberately looks into a dwelling on the property through any window or other opening in it; or
        (12) While acting as a collection agency as defined
    
in the Collection Agency Act or as an employee of the collection agency, and while attempting to collect an alleged debt, makes a telephone call to the alleged debtor which is designed to harass, annoy or intimidate the alleged debtor.
    (b) Sentence. A violation of subsection (a)(1) of this Section is a Class C misdemeanor. A violation of subsection (a)(5) or (a)(11) of this Section is a Class A misdemeanor. A violation of subsection (a)(8) or (a)(10) of this Section is a Class B misdemeanor. A violation of subsection (a)(2), (a)(3.5), (a)(4), (a)(6), (a)(7), or (a)(9) of this Section is a Class 4 felony. A violation of subsection (a)(3) of this Section is a Class 3 felony, for which a fine of not less than $3,000 and no more than $10,000 shall be assessed in addition to any other penalty imposed.
    A violation of subsection (a)(12) of this Section is a Business Offense and shall be punished by a fine not to exceed $3,000. A second or subsequent violation of subsection (a)(7) or (a)(5) of this Section is a Class 4 felony. A third or subsequent violation of subsection (a)(11) of this Section is a Class 4 felony.
    (c) In addition to any other sentence that may be imposed, a court shall order any person convicted of disorderly conduct to perform community service for not less than 30 and not more than 120 hours, if community service is available in the jurisdiction and is funded and approved by the county board of the county where the offense was committed. In addition, whenever any person is placed on supervision for an alleged offense under this Section, the supervision shall be conditioned upon the performance of the community service.
    This subsection does not apply when the court imposes a sentence of incarceration.
    (d) In addition to any other sentence that may be imposed, the court shall order any person convicted of disorderly conduct under paragraph (3) of subsection (a) involving a false alarm of a threat that a bomb or explosive device has been placed in a school that requires an emergency response to reimburse the unit of government that employs the emergency response officer or officers that were dispatched to the school for the cost of the response. If the court determines that the person convicted of disorderly conduct that requires an emergency response to a school is indigent, the provisions of this subsection (d) do not apply.
    (e) In addition to any other sentence that may be imposed, the court shall order any person convicted of disorderly conduct under paragraph (3.5) or (6) of subsection (a) to reimburse the public agency for the reasonable costs of the emergency response by the public agency up to $10,000. If the court determines that the person convicted of disorderly conduct under paragraph (3.5) or (6) of subsection (a) is indigent, the provisions of this subsection (e) do not apply.
    (f) For the purposes of this Section, "emergency response" means any condition that results in, or could result in, the response of a public official in an authorized emergency vehicle, any condition that jeopardizes or could jeopardize public safety and results in, or could result in, the evacuation of any area, building, structure, vehicle, or of any other place that any person may enter, or any incident requiring a response by a police officer, a firefighter, a State Fire Marshal employee, or an ambulance.
(Source: P.A. 103-366, eff. 1-1-24.)

    
Notes of Decisions
Cited in 126 cases (50 in the last 5 years), 1993–2026 · leading case: Andy Thayer v. Ralph Chiczewski, 705 F.3d 237 (7th Cir. 2012).
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Andy Thayer v. Ralph Chiczewski, 705 F.3d 237 (7th Cir. 2012). · cites it 3× “Other aspects of 720 ILCS 5/26-1 and Section 8-4-010 are not similar.”
People v. Swenson, 2020 IL 124688 (Ill. 2020). · cites it 2× “2d 536 , 552 (1997) (quoting 720 ILCS 5/26-1, Committee Comments-1961, at 337 (Smith-Hurd 1993)).”
People v. Sypien, 763 N.E.2d 264 (Ill. 2001). · cites it 3× “]" 720 ILCS 5/26-1(a)(4) (West 1998). Section 15 of Public Act 90-456 also amended the sentencing portion of the Code's disorderly conduct provision to provide: "(b) Sentence.”
Golden v. Helen Sigman & Assocs., Ltd., 611 F.3d 356 (7th Cir. 2010). · cites it 2× “2; 720 ILCS 5/26-1(a)(12); Chicago Municipal Code § 8-4-145.”
People v. McLENNON, 957 N.E.2d 1241 (Ill. App. Ct. 2011). · cites it 3× “McLennon, was convicted of one count of criminal damage to property under $300 (720 ILCS 5/21-1(1)(a) (West 2008)) and one count of disorderly conduct in violation of section 26-1(a)(1) of the Criminal Code of 1961 (720 ILCS 5/26-1(a)(1) (West 2008)). Defendant was sentenced to…”
In re Raheem M., 2013 IL App (4th) 130585 (Ill. App. Ct. 2014). · cites it 3× “05(d)(3) (West 2012)) and disorderly conduct (720 ILCS 5/26-1(a)(1) (West 2012)). In May 2013, the court sentenced respondent to an indeterminate term in the Department of Juvenile Justice (DOJJ).”
People v. Thornton, 2020 IL App (1st) 170753 (Ill. App. Ct. 2020). “393, 400 (2014) (noting a 911 call has features that allow for identifying and tracing callers and thus provides for safeguards against “making false reports with immunity”); 720 ILCS 5/26-1(12) (West 2010) (a person may be convicted of disorderly conduct for reporting a false…”
People v. Williams, 2018 IL App (4th) 150759 (Ill. App. Ct. 2018). “BACKGROUND ¶ 4 On March 24, 2015, the State charged defendant by information with disorderly conduct (count I) ( 720 ILCS 5/26-1(a)(2) (West 2014) ) and criminal trespass to real property (count II) ( 720 ILCS 5/21-3(a)(2) (West 2014) ).”
People v. Diomedes, 2014 IL App (2d) 121080 (Ill. App. Ct. 2014). · cites it 5× “at 395 ; see 720 ILCS 5/26-1(a)(1) (West 2012) (formerly Ill.”
Donald Gaddis v. Bryan J. DeMattei, 30 F.4th 625 (7th Cir. 2022). “Although Officer DeMattei himself conceded he did not have a detailed memory of the events, his uncontested report from that day provides ample information from which he could have reasonably believed probable cause existed to arrest Gaddis for disorderly conduct as defined…”
People v. Fretch, 2017 IL App (2d) 151107 (Ill. App. Ct. 2017). “” 720 ILCS 5/26-1(a)(1) (West 2014). All three counts alleged that defendant was aware of G.”
People v. Kurzeja, 2023 IL App (3d) 230434 (Ill. App. Ct. 2023). “BACKGROUND ¶3 On August 24, 2023, defendant was charged with disorderly conduct for transmitting a threat to a school building or persons (720 ILCS 5/26-1(a)(3.5) (West 2022)), a Class 4 felony.”
Show all 126 citing cases →
— 720 ILCS 5/26-1(1) — 2 cases
David Penn v. Veronica Harris & Melvin Jones, 296 F.3d 573 (7th Cir. 2002).
Penn, David v. Harris, Veronica (7th Cir. 2002).
— 720 ILCS 5/26-1(12) — 2 cases
People v. Thornton, 2020 IL App (1st) 170753 (Ill. App. Ct. 2020). “393, 400 (2014) (noting a 911 call has features that allow for identifying and tracing callers and thus provides for safeguards against “making false reports with immunity”); 720 ILCS 5/26-1(12) (West 2010) (a person may be convicted of disorderly conduct for reporting a false…”
People v. Martin, 2020 IL App (2d) 180910-U (Ill. App. Ct. 2020).
— 720 ILCS 5/26-1(A)(12) — 1 case
People v. Woods, 2024 IL App (1st) 220173-U (Ill. App. Ct. 2024).
— 720 ILCS 5/26-1(a) — 8 cases
People v. Kurzeja, 2023 IL App (3d) 230434 (Ill. App. Ct. 2023). “BACKGROUND ¶3 On August 24, 2023, defendant was charged with disorderly conduct for transmitting a threat to a school building or persons (720 ILCS 5/26-1(a)(3.5) (West 2022)), a Class 4 felony.”
People v. Bona, 2018 IL App (2d) 160581 (Ill. App. Ct. 2018).
People v. Khan, 2018 IL App (2d) 160724 (Ill. App. Ct. 2019).
People v. Khan, 2018 IL App (2d) 160724 (Ill. App. Ct. 2018).
People v. Ferguson, 2024 IL App (4th) 230624-U (Ill. App. Ct. 2024).
— 720 ILCS 5/26-1(a)(1) — 66 cases
Andy Thayer v. Ralph Chiczewski, 705 F.3d 237 (7th Cir. 2012). “Other aspects of 720 ILCS 5/26-1 and Section 8-4-010 are not similar.”
People v. Swenson, 2020 IL 124688 (Ill. 2020). “2d 536 , 552 (1997) (quoting 720 ILCS 5/26-1, Committee Comments-1961, at 337 (Smith-Hurd 1993)).”
People v. McLENNON, 957 N.E.2d 1241 (Ill. App. Ct. 2011). “McLennon, was convicted of one count of criminal damage to property under $300 (720 ILCS 5/21-1(1)(a) (West 2008)) and one count of disorderly conduct in violation of section 26-1(a)(1) of the Criminal Code of 1961 (720 ILCS 5/26-1(a)(1) (West 2008)). Defendant was sentenced to…”
In re Raheem M., 2013 IL App (4th) 130585 (Ill. App. Ct. 2014). “05(d)(3) (West 2012)) and disorderly conduct (720 ILCS 5/26-1(a)(1) (West 2012)). In May 2013, the court sentenced respondent to an indeterminate term in the Department of Juvenile Justice (DOJJ).”
Donald Gaddis v. Bryan J. DeMattei, 30 F.4th 625 (7th Cir. 2022). “Although Officer DeMattei himself conceded he did not have a detailed memory of the events, his uncontested report from that day provides ample information from which he could have reasonably believed probable cause existed to arrest Gaddis for disorderly conduct as defined…”
— 720 ILCS 5/26-1(a)(12) — 3 cases
Golden v. Helen Sigman & Assocs., Ltd., 611 F.3d 356 (7th Cir. 2010). “2; 720 ILCS 5/26-1(a)(12); Chicago Municipal Code § 8-4-145.”
City of Charleston v. Sys. of Admin. Hearing of the City of Charleston, 2019 IL App (4th) 180634 (Ill. App. Ct. 2019).
City of Charleston v. Sys. of Admin. Hearing of the City of Charleston, 2019 IL App (4th) 180634 (Ill. App. Ct. 2020).
— 720 ILCS 5/26-1(a)(13) — 5 cases
People v. Diomedes, 2014 IL App (2d) 121080 (Ill. App. Ct. 2014). “at 395 ; see 720 ILCS 5/26-1(a)(1) (West 2012) (formerly Ill.”
People v. Diomedes, 2014 IL App (2d) 121080 (Ill. App. Ct. 2014).
People v. Khan, 2018 IL App (2d) 160724 (Ill. App. Ct. 2018).
People v. Schultz, 957 N.E.2d 582 (Ill. App. Ct. 2011).
People v. Schultz, 2011 IL App (3d) 100340 (Ill. App. Ct. 2011).
— 720 ILCS 5/26-1(a)(2) — 1 case
People v. Williams, 2018 IL App (4th) 150759 (Ill. App. Ct. 2018). “BACKGROUND ¶ 4 On March 24, 2015, the State charged defendant by information with disorderly conduct (count I) ( 720 ILCS 5/26-1(a)(2) (West 2014) ) and criminal trespass to real property (count II) ( 720 ILCS 5/21-3(a)(2) (West 2014) ).”
— 720 ILCS 5/26-1(a)(3) — 5 cases
People v. Billups, 894 N.E.2d 871 (Ill. App. Ct. 2008).
People v. Muadinov, 2021 IL App (2d) 191138-U (Ill. App. Ct. 2021).
People v. Barron (Ill. App. Ct. 2004).
People v. Fuller, 714 N.E.2d 501 (Ill. 1999).
People v. Billups (Ill. App. Ct. 2008).
— 720 ILCS 5/26-1(a)(4) — 19 cases
People v. Sypien, 763 N.E.2d 264 (Ill. 2001). “]" 720 ILCS 5/26-1(a)(4) (West 1998). Section 15 of Public Act 90-456 also amended the sentencing portion of the Code's disorderly conduct provision to provide: "(b) Sentence.”
People v. Davis, 2024 IL App (3d) 240244 (Ill. App. Ct. 2024).
People v. Brown, 2017 IL App (2d) 160971 (Ill. App. Ct. 2017).
People v. Smollett, 2024 IL 130431 (Ill. 2024).
People v. Brown, 2013 IL App (2d) 111228 (Ill. App. Ct. 2013).
— 720 ILCS 5/26-1(a)(5) — 1 case
People v. Kurzeja, 2024 IL App (4th) 240269-U (Ill. App. Ct. 2024).
— 720 ILCS 5/26-1(a)(6) — 8 cases
People v. Purta, 2023 IL App (2d) 220169 (Ill. App. Ct. 2023).
People v. Hammerand, 2024 IL App (2d) 240500 (Ill. App. Ct. 2024).
People v. Davis, 2024 IL App (5th) 240120 (Ill. App. Ct. 2024).
People v. Steger, 2018 IL App (2d) 151197 (Ill. App. Ct. 2018).
People v. Steger, 2018 IL App (2d) 151197 (Ill. App. Ct. 2018).
— 720 ILCS 5/26-1(a)(9) — 2 cases
People v. Majka, 2020 IL App (2d) 180111-U (Ill. App. Ct. 2020).
People v. Locke, 2021 IL App (2d) 200343-U (Ill. App. Ct. 2021).
— 720 ILCS 5/26-1(b) — 5 cases
People v. Sypien, 763 N.E.2d 264 (Ill. 2001). “]" 720 ILCS 5/26-1(a)(4) (West 1998). Section 15 of Public Act 90-456 also amended the sentencing portion of the Code's disorderly conduct provision to provide: "(b) Sentence.”
People v. Jameson, 642 N.E.2d 1207 (Ill. 1994).
United States v. Mark A. Booker, Also Known as Bizmark, 71 F.3d 685 (7th Cir. 1995).
People v. Pederson, 2021 IL App (2d) 180554-U (Ill. App. Ct. 2021).
People v. Fuller, 714 N.E.2d 501 (Ill. 1999).
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