(A) No person shall knowingly resist or obstruct the performance by one known to the person to be a peace officer or correctional institution employee of any authorized act within his or her official capacity.
(B) For purposes of this section, the term CORRECTIONAL INSTITUTION EMPLOYEE shall mean 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.
(ILCS Ch. 720, Act 5, § 31-1) Penalty, see § 130.99