So calmly did Mr. Swartz conduct himself while testifying in February that one prosecutor, Ann Donnelly, warned jurors not to trust him.

Judge John F. Grady of Federal District Court warned jurors not to discuss the case because they still had to decide the amount of the forfeitures.

The judge in the case warned jurors, who are being sequestered, not to be swayed by sympathy for the victims or their families.

McKenna has repeatedly warned jurors to ignore news media accounts of the trial.

The judge also warned jurors about not discussing trial events among themselves, adding, "You're not to discuss what goes on at sidebar."

The judge warned jurors about "unprecedented media publicity" regarding the case.

A preliminary questionnaire warns prospective jurors that the evidence may take until January to present and that deliberations could last another month.

The judge, after not declaring a mistrial, warned potential jurors before the murder-for-hire tale was discovered not to read or listen to reports about the case.

Judge Reggie B. Walton warned jurors to ask for a break if their attention was flagging.

Ms. Clark warned jurors to be "ever vigilant" against what she described as efforts by Mr. Simpson's lawyers to raise spurious doubts wherever and however they can.