Sign of the times

Last week, a juror in a big federal drug trial in Florida admitted to the judge that he had been doing research on the case on the Internet, directly violating the judge’s instructions and centuries of legal rules. But when the judge questioned the rest of the jury, he got an even bigger shock.

Eight other jurors had been doing the same thing. The federal judge, William J. Zloch, had no choice but to declare a mistrial, a waste of eight weeks of work by federal prosecutors and defense lawyers.

A new day clearly requires new rules. Can cellphones be excluded?

Jurors are not supposed to seek information outside of the courtroom. They are required to reach a verdict based on only the facts the judge has decided are admissible, and they are not supposed to see evidence that has been excluded as prejudicial. But now, using their cellphones, they can look up the name of a defendant on the Web or examine an intersection using Google Maps, violating the legal system’s complex rules of evidence. They can also tell their friends what is happening in the jury room, though they are supposed to keep their opinions and deliberations secret.

Supposed to; honor and integrity are key ingredients.

Judges have long amended their habitual warning about seeking outside information during trials to include Internet searches. But with the Internet now as close as a juror’s pocket, the risk has grown more immediate — and instinctual. Attorneys have begun to check the blogs and Web sites of prospective jurors.

Aside from the voir dire, blog searches.

But the rules of evidence, developed over hundreds of years of jurisprudence, are there to ensure that the facts that go before a jury have been subjected to scrutiny and challenge from both sides, said Olin Guy Wellborn III, a law professor at the University of Texas.

Great name: Olin Guy Wellborn III.

Some courts are beginning to restrict the use of cellphones by jurors within the courthouse, even confiscating them during the day, but a majority do not, Mr. Keene said. And computer use at home, of course, is not restricted unless a jury is sequestered.