Illinois Misdemeanor Complaint is a legal document used to initiate a criminal case in the state of Illinois for alleged misdemeanors. The complaint is filed by either a victim, a police officer, or a prosecutor, and it is the first step in the prosecution process. It is a sworn statement that identifies the defendant and describes the alleged offense. Depending on the nature of the charge, the complaint may name one or more defendants. There are two types of Illinois Misdemeanor Complaint: Class A and Class B. Class A misdemeanors are the most serious misdemeanors and carry a sentence of up to one year in prison and/or a fine of up to $2,500. Examples of Class A misdemeanors include driving under the influence of alcohol and theft. Class B misdemeanors are less serious and carry a sentence of up to six months in prison and/or a fine of up to $1,500. Examples of Class B misdemeanors include disorderly conduct and prostitution.