Retired Illinois Appellate Court Justice Sheila O'Brien argued Judge LeRoy Martin Jr. should recuse himself in the case because Kim Foxx can hire and fire his son, who works for the state's attorney's office. She is asking for a judge from outside the county to ensure this process is fair.
WATCH: Timeline of key moments in Jussie Smollett case
Judge Martin called it troubling that his family is being brought into this and at times got into heated exchanges with O'Brien, who at one point suggested to the judge that he should recuse himself and "take the higher ground."
The State is arguing that there's no evidence that the judge would be biased if Kim Foxx had to take the stand.
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Locke Bowman of Northewestern University Pritzker School of Law said O'Brein's request for recusal is puzzling.
"Assistant State's Attorneys appear for him in matters many times a day, every day of the week," Bowman said. "There's typically no suggestion that because of his son's involvement with the State's Attorney's Office that his judgment is impaired."
"Special prosecutors are appointed to investigate crimes and as far as I'm aware there is no evidence or reason to believe that State's Attorney Kim Foxx or anyone in her office engaged in any remotely criminal conduct," Bowman added.
Foxx was not in court Thursday. Neither was Smollett, who now lives in California.
The hearing Thursday was held on O'Brien's petition to appoint a special prosecutor to look into Foxx and her office's handling of the controversial Jussie Smollett case.
The Cook County state's attorney's office dropped all charges against the actor on the show "Empire" after police maintained he staged a homophobic and racist attack on himself back in January.
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Foxx recused herself from the case for a potential conflict of interest, but critics remain suspicious that she may have used her influence to make sure the charges were dropped.
Judge Martin said he will take the suggestion to recuse himself under consideration. All parties will be back in court next Friday.
Meanwhile, Kim Foxx was not in court and neither was Smollett, who has moved out of Chicago to California.
The TV actor claimed he was the victim of a vicious hate crime in the Streeterville neighborhood on January 29. He said two men physically attacked him while yelling racist and homophobic slurs, threw a chemical liquid on him and looped a rope around his neck.
Two days after the alleged attack, Chicago police released surveillance images of two people they said they considered persons of interest in the attack.
But the investigation turned on Smollett. He was accused of allegedly orchestrating the attack with the Osundairo brothers, who he knew. One brother was an extra on "Empire" and the other was Smollett's personal trainer.
Prosecutors said Smollett paid the brothers to pull off the staged attack.
Smollett had also reported a threatening letter sent to him on the "Empire" set containing a white powder, a week before the alleged attack. The letter is currently in the FBI crime lab for analysis, sources said, and experts believe Smollett could face federal charges for allegedly sending the letter.
All charges against Smollett were dropped in late February in exchange for community service and forfeiture of his $10,000 bond payment.
Smollett has maintained his innocence. The City of Chicago is suing the actor for the costs of the investigation and damage to the city's reputation.
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