430 ILCS 68/5-45
The Illinois State Police may subpoena and bring before it any person or entity to take oral or written testimony or may compel the production of any books, papers, records, or any other documents that the Illinois State Police deems directly relevant or material to an investigation or hearing conducted by the Illinois State Police in the enforcement of this Act, with the same fees and in the same manner prescribed in civil cases in the courts of this State. The licensee may file an emergency motion with the Director or a hearing officer authorized by the Illinois State Police to quash a subpoena issued by the Illinois State Police. If the Director or hearing officer determines that the subpoena was issued without good cause, the Director or hearing officer may quash the subpoena.
430 ILCS 68/5-45