(A) A person who knowingly resists or obstructs the performance by one known to the person to be a peace officer, the Fire Services Administrator, or firefighter, of any authorized act within his or her official capacity commits a misdemeanor.
(B) For purposes of this section, “CORRECTIONAL INSTITUTION EMPLOYEE” means any person employed to supervise and control inmates incarcerated in a penitentiary, state farm, reformatory, prison, jail, house of correction, police detention area, half-way house, or other institution or place for the incarceration or custody of persons under sentence for offenses or awaiting trial or sentence for offenses, under arrest for an offense, a violation of probation, a violation of parole, or a violation of mandatory supervised release, or awaiting a bail setting hearing or preliminary hearing; and “FIREFIGHTER” means any individual, either as an employee or volunteer, of a regularly constituted fire department of a municipality or fire protection district who performs fire fighting duties, including, but not limited to, the assistant fire chief, captain, engineer, driver, ladder person, hose person or pipe person. “FIREFIGHTER” does not include the Fire Services Administrator. “FIREFIGHTER” also means a person employed by the Office of the State Fire Marshal to conduct arson investigations.
(C) It is an affirmative defense to a violation of this section if a person resists or obstructs the performance of one known by the person to be a firefighter by returning to or remaining in a dwelling, residence, building, or other structure to rescue or to attempt to rescue any person.
(ILCS Ch. 720, Act 5 § 31-l) ('77 Code, § 135.002) (Am. Ord. 2018-O-058, passed 10-2-18) Penalty, see § 133.99