An Illinois Order To Show Cause is a court order requiring a person or entity to appear in court to explain why a certain action should not be taken or why a certain condition should not be enforced. There are two main types of Illinois Order To Show Cause: a Contempt Order To Show Cause, and a Subpoena Order To Show Cause. A Contempt Order To Show Cause is issued to a party who has been found in contempt of court or disobeyed a court order. It requires the party to appear before a judge and explain why a certain action should not be taken against them. A Subpoena Order To Show Cause is issued to a witness or other person who may have relevant information in a case. It requires the party to appear before a judge and explain why they should not be required to produce evidence in the case.