Such court may at any time, upon complaint made and cause shown satisfactory to it, after notice to such commissioner and an opportunity to be heard, remove any such commissioner and enter of record in the court such order of removal. Such order may be appealed as in other civil cases. Such complaint must be signed and sworn to by at least 25 legal voters of such city, village or incorporated town, and must state the grounds of such complaint.
10 ILCS 5/6-23