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The Hon. Joan M. O'Brien (Ret.) served as a circuit judge on the Circuit Court of Cook County in Illinois. O’Brien was elected to the bench on November 7, 2000. She retired on September 17, 2021.
Over the course of her judicial career, O’Brien held assignments in the Child Protection Division and the 5th Municipal District. She also sat as a supervising judge of the felony courts for the 5th Municipal District, and she is credited with establishing the Veterans Treatment Court and the Drug Treatment Court in Bridgeview.
O’Brien earned a J.D. from Drake University Law School in 1982.
After graduating from law school, O’Brien began her legal career as an assistant state’s attorney with the Cook County State’s Attorney’s Office. She served in that capacity until her election to the bench, prosecuting felony narcotics, traffic, and misdemeanor cases while also handling criminal appeals.
Discover if Hon. O'Brien is the right judge for your case based on their ruling history.
View Analytics Dashboard| Current Appointment Circuit Court of Cook County (Fifth Municipal District) | Circuit Court of Cook County (Fifth Municipal District) |
| Election/Appointment November 7, 2000 - Circuit Court of Cook County; November 7, 2006 - Re-election; November 6, 2012 - Re-election; November 6, 2018 - Re-election | November 7, 2000 - Circuit Court of Cook County; November 7, 2006 - Re-election; November 6, 2012 - Re-election; November 6, 2018 - Re-election |
| Previous Appointment Circuit Court of Cook County (Child Protection Division) | Circuit Court of Cook County (Child Protection Division) |
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Education
J.D., Drake University Law School - 1982 |
J.D., Drake University Law School - 1982 |
| Current Court: | IL - Circuit Court of Cook County (Fifth Municipal District) |
|---|---|
| Previous Court: | IL - Circuit Court of Cook County (Child Protection Division) |
| Role | Employer | Where |
|---|---|---|
| Assistant State's Attorney | Office of the Cook County State's Attorney | Cook County, Illinois |
| Circuit Judge | Circuit Court of Cook County | Cook County, Illinois |
Injustice Watch: Joan Margaret O'Brien
The Chicago Council of Lawyers: Joan Margaret O'Brien
WGN 9: Courtroom Fireworks in Burr Oak Cemetery Scandal Trial
Illinois State Bar Association: Recent Appointments and Retirements
LinkedIn: Joan O'Brien
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