Illinois Dismissal For Want of Prosecution Order is a court order issued by an Illinois court that dismisses a criminal case due to lack of prosecution. It is commonly known as a "nolle prosequi" order. The order can be issued when a criminal defendant is not properly served with process, or when a prosecutor fails to proceed with the case despite having the necessary evidence and witnesses available. There are two types of Illinois Dismissal For Want of Prosecution Order: voluntary nolle prosequi and involuntary nolle prosequi. A voluntary nolle prosequi is initiated by the prosecutor and is usually filed after an indictment or pre-trial conference. An involuntary nolle prosequi is issued by the judge and is usually based on a motion to dismiss filed by the defense.