The Chicago Sun-Times reports state police justified the search warrant, executed Wednesday, because "probable cause exists for the crimes of criminal sexual abuse, criminal sexual assault, official misconduct, stalking and aggravated battery."
It sought personnel files that contained information related to allegations of wrongdoing by Franks, who hasn't been charged and denies any wrongdoing.
Madigan confirmed the warrant Friday night. In a statement he said, "I remain committed to working to protect the victim and will see this matter to its conclusion in order to ensure the victim's safety."
WLS-TV contributed to this report