Illinois Statutes Chapter 730. Corrections § 125/5. Costs of maintaining committed persons

(a) Except as provided in subsections (b) and (c), all costs of maintaining persons committed for violations of Illinois law, shall be the responsibility of the county. Except as provided in subsection (b), all costs of maintaining persons committed under any ordinance or resolution of a unit of local government, including medical costs, is the responsibility of the unit of local government enacting the ordinance or resolution, and arresting the person.

(b) If a person who is serving a term of mandatory supervised release for a felony is incarcerated in a county jail, the Illinois Department of Corrections shall pay the county in which that jail is located one-half of the cost of incarceration, as calculated by the Governor's Office of Management and Budget and the county's chief financial officer, for each day that the person remains in the county jail after notice of the incarceration is given to the Illinois Department of Corrections by the county, provided that (i) the Illinois Department of Corrections has issued a warrant for an alleged violation of mandatory supervised release by the person; (ii) if the person is incarcerated on a new charge, unrelated to the offense for which he or she is on mandatory supervised release, there has been a court hearing at which the conditions of pretrial release have been set on the new charge; (iii) the county has notified the Illinois Department of Corrections that the person is incarcerated in the county jail, which notice shall not be given until the hearing has concluded, if the person is incarcerated on a new charge; and (iv) the person remains incarcerated in the county jail for more than 48 hours after the notice has been given to the Department of Corrections by the county. Calculation of the per diem cost shall be agreed upon prior to the passage of the annual State budget.

(c) If a person who is serving a term of mandatory supervised release is incarcerated in a county jail, following an arrest on a warrant issued by the Illinois Department of Corrections, solely for violation of a condition of mandatory supervised release and not on any new charges for a new offense, then the Illinois Department of Corrections shall pay the medical costs incurred by the county in securing treatment for that person, for any injury or condition other than one arising out of or in conjunction with the arrest of the person or resulting from the conduct of county personnel, while he or she remains in the county jail on the warrant issued by the Illinois Department of Corrections.