Illinois Statutes Chapter 705. Courts § 405/2-6. Duty of officer

(a) A law enforcement officer who takes a minor into custody with a warrant shall without unnecessary delay take the minor to the nearest juvenile police officer designated for such purposes in the county of venue.

(b) A law enforcement officer who takes a minor into custody without a warrant shall place the minor in temporary protective custody and shall immediately notify the Department of Children and Family Services by contacting either the central register established under Section 7.7 of the Abused and Neglected Child Reporting Act  1 or the nearest Department of Children and Family Services office. If there is reasonable cause to suspect that a minor has died as a result of abuse or neglect, the law enforcement officer shall immediately report such suspected abuse or neglect to the appropriate medical examiner or coroner.