A subpoena is an official court order requiring you to appear at the time and place it specifies – usually to provide testimony.  It continues to bind you to appear at every subsequent setting until the case is finally disposed.  You should have your subpoena with you when you appear.  You should read your subpoena carefully.  The subpoena will tell you when and where to appear.  It may also inform you of any additional items and documents you must bring. 

Failure to appear constitutes contempt of court.  If you should move or change your phone number, please contact the St. Louis County Attorney’s Office immediately.  Your subpoena may give a specific time or it may direct you to call before you come.