About
Robert J Callahan is a Chicago criminal defense lawyer at Robert J. Callahan & Associates, known for representing clients in serious Illinois and federal criminal matters. His work has included felony narcotics cases, weapons charges, violent crimes, murder allegations, white collar offenses, fraud, embezzlement, DUI, and misdemeanor cases. He built his practice around detailed investigation, careful research, and close client communication. His strategies focused on identifying weaknesses in police work, prosecution evidence, and complex witness testimony.
Robert earned his J.D. from Chicago-Kent College of Law and his B.A. from the University of Illinois in 1990. He developed a hands-on investigative process shaped by more than two decades of courtroom experience. He gathered police reports, obtained emergency and dispatch recordings, visited alleged crime scenes, documented measurements, and interviewed witnesses. He also listened closely to each client’s account before evaluating the case from police and prosecutorial perspectives. This thorough preparation supported cross-examination, motion practice, negotiations, and trial strategies designed around the physical evidence and the client’s circumstances.
Robert represented accused individuals throughout Chicago, nearby suburbs, surrounding Illinois communities, and federal courts nationwide. His practice addressed expungement, executive clemency, drug accusations, assault and battery, weapons offenses, traffic matters, juvenile cases, and complex federal charges. The firm reports more than 2,000 documented successful case outcomes since 1999. His work included dismissals, reduced charges, findings of no probable cause, clemency grants, and an acquittal in a highly contested murder trial.
Robert J Callahan retired from day-to-day legal practice in 2023, while the criminal defense firm he established continues serving clients. He earned recognition from The National Trial Lawyers as one of the country’s Top 100 Criminal Defense Trial Lawyers. His professional approach emphasized availability, responsiveness, individual attention, and strong attorney-client relationships. He also communicated fluently in written and spoken Spanish, helping Spanish-speaking clients understand criminal proceedings and available defense options.
Law Office Affiliations
- Owner, Robert J Callahan | Chicago Defense Lawyer
- Member, The Illinois State Bar Association
Licensed State
- Illinois
Education
- Chicago-Kent College of Law
Juris Doctor (JD) - University of Illinois
Bachelor’s Degree
Awards & Badges

- Assault & Battery
- Drug Crime
- Homicide
- Violent Crime
- White Collar Crime




