It happened after Chicago Heights Police took Kathy LaFond into custody for driving without a valid license. The officer allowed LaFond's boyfriend, Cecil Conner, to take the car with her 5-year-old son inside.
Conner later crashed the car in nearby Steger, killing the boy.
Earlier this week, LaFond's attorney released police dispatch tapes from that night.
"The city brought their motion and the judge rightfully denied it, saying that there's a 1st Amendment issue and that freedom of the press and basically the 1st Amendment compels her to not gag, to not place a gag order on this matter," sad Mark Horwitz, LaFond's attorney.
An attorney for Chicago Heights Police had no comment Friday.
LaFond has filed a lawsuit against Chicago Heights Police and Conner.