When Donna is testifying, she has been called as a witness for the State, who is prosecuting her boyfriend. When her boyfriend's lawyer is allowed to cross-examine her, he asks her a leading question. The prosecutor objects, stating that Donna has been asked a leading question, to which the judge replies, "Sustained!" Every legal jurisdiction in the U.S. permits leading questions to be asked of witnesses on cross-examination. In fact, everyone who practices law knows that you are supposed to ask nothing but leading questions during cross-examination. The objection clearly should have been overruled.
Also, in this same scene but earlier, when Donna states an opinion that the judge strikes after the prosecutor's objection, a boom mic drops into the frame between the lawyer and Donna at the top of the screen.