Illinois Statutes Chapter 55. Counties § 5/3-15003. Powers and duties

(a) To operate and have jurisdiction over the county jail, municipal houses of correction within the county and any other penal, corrections or committed person diagnostic center facility operated by either the county jail or municipal houses of correction.

(b) To have charge of all committed persons held in any institution, center or other facility in the county over which it has jurisdiction under subsection (a) of this Section, whether they are misdemeanants, felons, persons held for trial, persons held in protective custody, persons held for transfer to other detention facilities or persons held for non-payment of fines, for violations of ordinances or any other quasi-criminal charges. Nothing in this Division applies to minors subject to proceedings under the Juvenile Court Act of 1987. 1 It may transfer or recommit any committed person from one institution, center or other such facility to any other institution, center or other facility whenever it determines that such transfer or recommitment would promote the welfare or rehabilitation of the committed person, or that such transfer or recommitment is necessary to relieve overcrowding.

(c) To establish diagnostic, classification and rehabilitation services and programs at the county jail and such other facilities over which it has jurisdiction under subsection (a) of this Section as may be appropriate.

(d) To establish, whenever feasible, separate detention and commitment facilities and utilize the facilities over which it has jurisdiction under subsection (a) of this Section in a manner which provides separate detention and commitment facilities.