About
Marc M. Barnett is a Chicago criminal defense lawyer at Criminal Defense Lawyer of Chicago, with more than four decades of experience representing clients in state and federal courts. He has defended and tried thousands of cases throughout the country, giving him extensive insight into courtroom procedure, prosecution strategy, and case preparation. His practice emphasizes direct guidance, detailed analysis, and determined advocacy for people facing investigations, criminal charges, trials, and serious personal, professional, and legal consequences.
Marc earned his J.D. from The John Marshall Law School and his B.A. from Brooklyn College of the City University of New York. He was admitted to the Illinois Bar in 1970, beginning a legal career that has spanned more than five decades. Before concentrating on defense work, he served in a prosecutor’s office. His prosecutorial background helps him anticipate charging theories, evaluate evidence, and prepare responses to government arguments.
Marc represents clients facing criminal investigations and prosecutions in Illinois state courts and federal courts across the country. He reviews the government’s allegations, identifies weaknesses, and develops strategies suited to the evidence and penalties. His extensive trial experience supports confident advocacy during negotiations, motion hearings, and courtroom proceedings. He also explains procedural choices and consequences so clients can make informed decisions while their liberty, reputation, and future remain at risk.
Marc M. Barnett offers free initial consultations to people seeking guidance after an arrest, investigation, or criminal accusation. He brings a courtroom demeanor to each matter and remains prepared to defend clients through trial when necessary. His representation focuses on protecting constitutional rights, challenging unsupported allegations, and presenting each client’s position clearly. He provides counsel for individuals who need practical advice, responsive communication, and committed defense during demanding criminal proceedings.
Law Office Affiliations
- Partner, Criminal Defense Lawyer of Chicago
- Member, The Illinois State Bar Association
Licensed State
- Illinois
Education
- The John Marshall Law School
Juris Doctor (JD) - Brooklyn College of the City University of New York
Bachelor’s Degree
Awards & Badges

- Assault & Battery
- DUI & DWI
- Homicide
- Sex Crimes
- Speeding & Traffic Tickets




