225 ILCS 317/80: Deposition of witnesses; testimony at hearing recorded.

In the event of the inability of any party or the Office to procure the attendance of witnesses to give testimony or produce books and papers, the party or the Office may take the deposition of witnesses in accordance with the laws of this State. All testimony taken at a hearing shall be reduced to writing and all such testimony and other evidence introduced at the hearing shall be a part of the record of the hearing.