Considerations for Disorderly Conduct. Learn about the law and find a attorney to defend you.Disorderly conduct in Illinois is typically a misdemeanor charge, although it can escalate to a felony, depending on the circumstances of the case. Disorderly conduct charges range from Class C Misdemeanors to Class 3 Felonies. If convicted, these charges stay on your record for life. If convicted, these charges stay on your record for life. If you've been charged with disorderly conduct in Illinois, contact Chicago criminal defense lawyer Michael O'Meara at (312) 428-4000 for a free consult. Disorderly Conduct is a crime in Illinois that can be a Misdemeanor or a Felony carrying a possible prison sentence. A disorderly conduct charge involves behaving "boisterously," disruptive, or otherwise unreasonably loud in public. A charge of Disorderly Conduct is one of the most common offenses with which individuals are charged.