An Illinois Body Attachment Order is a legal document issued by a court that orders a person to appear in court or face penalties. The order requires an individual to post a bond to ensure future appearance in court. The order is issued when an individual fails to appear in court for a legal matter, such as a civil suit or criminal trial. There are two types of Illinois Body Attachment Order: a writ of attachment and an arrest order. A writ of attachment is used to seize a person's property as security for court appearances. An arrest order is used to take a person into custody and bring them to court.