An Illinois Order Setting Bail Commitment to the Department of Corrections requiring Source of Bail Funds Hearing is a court hearing that is held to determine the source of funds used for posting bail. This hearing is held when a defendant posts a bond, or posts bail, and the court needs to determine if the funds used to post the bail were obtained legally. During this hearing, the court may ask the defendant to provide proof of the source of funds used to post bail. The hearing may also involve witnesses or other evidence to determine the legality of the source of funds. There are two types of Illinois Order Setting Bail Commitment to the Department of Corrections requiring Source of Bail Funds Hearings: pre-trial hearings and post-trial hearings. Pre-trial hearings are held prior to the start of a criminal trial, while post-trial hearings are held after a criminal trial has concluded.