Illinois Statutes Chapter 725. Criminal Procedure § 120/7. Responsibilities of victims and witnesses

(a) To make a timely report of the crime;

(b) To cooperate with law enforcement authorities throughout the investigation, prosecution, and trial;

(c) To testify at trial;

(c-5) to timely provide information and documentation to the prosecuting attorney that is related to the assertion of their rights.

(d) To notify law enforcement authorities and the prosecuting attorney of any change of contact information, including but not limited to, changes of address and contact information, including but not limited to changes of address, telephone number, and email address. Law enforcement authorities and the prosecuting attorney shall maintain the confidentiality of this information. A court may find that the failure to notify the prosecuting attorney of any change in contact information constitutes waiver of a right.

(e) A victim who otherwise cooperates with law enforcement authorities and the prosecuting attorney, but declines to provide information and documentation to the prosecuting attorney that is privileged or confidential under the law, or chooses not to waive privilege, shall still be considered as cooperating for the purposes of this Act and maintain the status of victim and the rights afforded to victims under this Act.