Public Defenders

Public Defenders

The Williamson County Public Defender's Office provides legal representation to any person charged with a criminal offense where incarceration is a possible sentence and to any person named as a party in a juvenile court proceeding, who are financially unable to hire an attorney.  Representation begins only after appointment by the Court.  The office is staffed by five full-time licensed attorneys.


Therese H. Thien, Chief Public Defender - ext. 3376

David L. Smith, Public Defender - ext. 3374

Thomas Moyer, Public Defender - ext. 3378

Bart-Anthony "BA" Basi IV, Public Defender - ext 3370

Colton Flannigan, Public Defender - ext. 3375

Office Hours:
8:00 a.m.- 4:00 p.m.
Monday-Friday (Closed on Legal Holidays)

Williamson County Courthouse
200 W. Jefferson
Marion, IL. 62959

Additional Resources

For more information, please visit the following resources:

Illinois Compiled Statutes
Illinois Court Information Map
Illinois General Assembly Website
Illinois State Agency Websites
Illinois Supreme Court Website
Williamson County Circuit Clerk Court Records