The tradition of jury nullification in the United States has its roots in the British legal system, specifically in a 1670 English case where
Quakers were acquitted by a jury of violating a law that permitted religious assemblies only under the
Church of England. In 1735, journalist
John Peter Zenger was acquitted in New York by a jury that nullified a law making it a crime to criticize public officials. In the 1794 case
Georgia v. Brailsford, the U.S. Supreme Court directed a jury that although they would ordinarily be expected to follow the judge's directions, they could not be compelled to do so. By the middle of the 19th century, some judges sought to distance themselves from this position, increasingly holding that it was for judges to decide what the law said or meant, and that it was the jurors' duty to follow these judicial interpretations. In 1895, in
Sparf and Hansen v United States, the Supreme Court held that its own earlier decision had been wrong, and that a jury had a duty to apply the law as set out by the trial judge. During the 19th and 20th centuries, especially in the 1950s and '60s
civil rights movement era, some all-white juries acquitted white defendants accused of murdering blacks, but the problem, according to some scholars, was "not in jury nullification, but in jury selection. The jury was not representative of the community". During
Prohibition, juries often nullified alcohol control laws, possibly as often as 60% of the time, because of disagreements with the justice of the law. This resistance is considered to have contributed to the adoption of the
Twenty-first Amendment repealing the
Eighteenth Amendment which established
Prohibition. Kalven's and Zeisel's study of the American jury found that juries acquitted when judges would have convicted in only 19% of cases, and of these, only 21% of the acquittals were attributable to jury nullification. Jury nullification sometimes takes the form of a jury convicting the defendant of lesser charges than the prosecutor sought. In the 21st century, many discussions of jury nullification center around drug laws that many consider unjust either in principle or because they disproportionately affect members of certain groups. A jury nullification advocacy group estimates that 3–4% of all jury trials involve nullification, During the
Vietnam War era, many protestors, including
Benjamin Spock, sought jury nullification. Spock was convicted of conspiracy to counsel, aid, and abet registrants to avoid the draft, after the judge instructed the jury to apply the law as he laid it down, but the
United States Court of Appeals for the First Circuit overturned the conviction because the judge had committed prejudicial error in putting to the jury ten special yes-or-no questions. Eight defendants from
Oakland, California, were tried in 1969 for conspiracy to disrupt a draft induction center, and the jury acquitted after being told by the judge that it could acquit if it felt the defendants' actions were protected by First Amendment guarantees of freedom of speech and assembly. Likewise, in a case involving ten Seattle protestors accused of blocking a munitions train carrying bombs destined for Vietnam, the jury acquitted after the judge allowed the defendants to talk about their motives and permitted the defense to ask the jurors to invoke their consciences and object to the war by acquitting. There was also a case in which a jury voted 9–3 to acquit peace activists despite their admission that they poured blood in a military recruiting center. Several recent cases have prompted speculation that the verdicts were products of jury nullification. These include the prosecution of Washington, D.C.'s former
mayor Marion Barry, the trial of
Lorena Bobbitt, the prosecution of the police officers accused of beating
Rodney King, the prosecution of two men charged with beating
Reginald Denny in
the resulting Rodney King riots, the trial of the
Menéndez brothers for their parents' murder, and the
O. J. Simpson murder case. In the days preceding
Jack Kevorkian's trial for
assisted suicide in Michigan, Kevorkian's lawyer,
Geoffrey Fieger, told the press that he would urge the jury to disregard the law. Prosecutors prevailed upon the judge to enter a pretrial order banning any mention of nullification during the trial, but Fieger's statements had already been extensively reported in the media. In a 1998 article,
Vanderbilt University Law School Professor Nancy J. King wrote, "recent reports suggest jurors today are balking in trials in which a conviction could trigger a
three strikes or other
mandatory sentence, and in
assisted suicide,
drug possession, and firearms cases." ==Court opinions==