Twelve, Neither More Nor Less

The jury box in a Florida criminal courtroom holds six chairs. In one of those courtrooms, in West Palm Beach, six people heard the state’s case against a chiropractor named Hamed Kian, and they convicted him on every count. Kian is forty-five years old, with an office up the road in Jupiter. Florida had suspended his license after three women he had treated complained that he kissed or touched them inappropriately, and prosecutors said he went right on seeing patients. The charge was practicing chiropractic medicine with a suspended license, a third-degree felony, five counts of it. He drew a year and a day in prison and five years of probation. The Fourth District Court of Appeal affirmed in October 2025 and did not write an opinion, because none of this is unusual in Florida. Florida seats twelve jurors only in capital cases. Everything else, from this chiropractor’s case to armed robbery, has gone to six jurors since 1877.

On June 15, 2026, the Supreme Court agreed to hear Kian v. Florida, No. 25-6623. The question is whether the Sixth and Fourteenth Amendments guarantee a defendant charged with a serious felony a trial by a jury of twelve. Kian filed in forma pauperis in January, a man who could not pay the filing fee, and he asks the Court to overrule Williams v. Florida, the 1970 decision that approved the six-person jury. Argument is expected in the term that began on October 5. On that same day the Solicitor General moved for leave to argue as amicus on Florida’s side. The motion asked for ten minutes, which would split the hour thirty for Kian, twenty for Florida, and ten for the United States. The United States tries its own defendants to twelve jurors in every federal felony case. This fall it will stand at the lectern to defend Florida’s six.

Florida’s filings say what the state believes is at stake. Roughly 5,000 convictions by six-member juries are pending on direct appeal in Florida’s courts alone, and five other states, Arizona, Connecticut, Indiana, Massachusetts, and Utah, use juries smaller than twelve in at least some criminal trials. A ruling for Kian would cloud thousands of verdicts built on half a century of reliance on Williams. Kian’s side has drawn an odd coalition for a chiropractor’s appeal. The United States Conference of Catholic Bishops filed for him. So did current and former prosecutors, the American Civil Liberties Union, and the National Association of Criminal Defense Lawyers. Law professors from Northwestern, Michigan, and Cornell joined them, arguing that the Court in 1970 misread the thin body of jury research it cited. Akhil Reed Amar filed. Whatever else divides those people, they agree the number matters.

The number was old before England was a kingdom. Around the year 997, King Æthelred issued a code for the Danelaw, the Danish-settled north and east of the country, promulgated at a place called Wantage. One clause ordered that a court be held in every wapentake, the local district. The twelve leading thegns were to go out with the king’s reeve and swear on the relics placed in their hands that they would accuse no innocent man and shield no guilty one. An oath on relics was a heavy thing in 997. Men believed the saints were listening. Those twelve then named the men of bad repute and arrested them. Scholars of early English law call the Wantage clause perhaps the earliest description of a jury of presentment, the accusing body that came before the trial jury. Pollock and Maitland read it the same way in their History of English Law, and still warned against drawing a straight bloodline from the Danelaw wapentake to the jury of the later common law. The genealogy is contested. The number keeps appearing.

In 1166 Henry II made the number national. The Assize of Clarendon ordered inquiry in every county through twelve of the more lawful men of the hundred and four of the more lawful men of each vill. They swore to say whether anyone had been accused or publicly suspected of robbery, murder, theft, or harboring such men since the king’s reign began. The twelve spoke the suspicion. The ordeal of water did the rest. A bound man went into the water, and the water gave the verdict. In time the ordeal died, and the men who spoke the suspicion came to decide the guilt as well. By the fourteen hundreds the common-law jury was fixed at twelve.

Magna Carta set no number. The charter of 1215 promised that no free man would be taken or imprisoned except by the lawful judgment of his peers or by the law of the land. It gave no count. The count hardened anyway. Sir Matthew Hale wrote that the law of England had afforded the best method of trial possible, a jury of twelve men all concurring in the same judgment, and he was exact about it. Twelve must be sworn, he said, and if only eleven were sworn by mistake, no verdict could be taken from the eleven. Blackstone, in 1769, wrote that no person could be found guilty of a serious crime unless the truth of the accusation was confirmed by the unanimous suffrage of twelve of his equals and neighbors. The mystical explanations all arrived after the number was fixed, as the legal historians took care to note. Coke reached into holy writ: twelve apostles, twelve stones, twelve tribes.

America inherited the number with the common law. In October 1774 the First Continental Congress claimed for the colonists the law of England and, in its resolution, the great and inestimable privilege of being tried by their peers of the vicinage. The Judiciary Act of 1789, the first Congress at work, required at least twelve petit jurors in capital trials. Ratified in 1791, the Sixth Amendment promised a speedy and public trial by an impartial jury and set no number, because no one in the room thought the number needed setting. The House had passed a version specifying unanimity and the other accustomed requisites of the common-law jury, and the Senate struck the particulars. The two sides in Kian still read that deletion against each other. Florida reads it as proof the framers refused to constitutionalize details. Kian’s side reads it as a quarrel over vicinage, over how local the jury had to be, with the content of the common law riding along inside the word jury either way.

The Supreme Court said the number aloud in 1898. The case was Thompson v. Utah, and the facts were small. Thompson and a man named Jack Moore had stolen a calf belonging to Heber Wilson in Wayne County, Utah Territory, in March 1895. A territorial jury of twelve convicted both men and recommended them to the mercy of the court. Thompson won a new trial, but Utah entered the Union in January 1896 before the retrial, and the new state’s constitution seated eight jurors for noncapital felonies. Eight convicted him, and he got three years. The Supreme Court reversed, seven to two, and Justice Harlan wrote the opinion. The jury referred to in the original Constitution and in the Sixth Amendment, he said, is a jury constituted, as it was at common law, of twelve persons, neither more nor less. When Magna Carta spoke of the judgment of a man’s peers, it meant a trial by twelve jurors. The words trial by jury were placed in the Constitution with reference to the meaning affixed to them in the law of England and America when the instrument was adopted. Utah’s own supreme court had shrugged that there could be no magic in the number twelve, though hallowed by time. Harlan answered that the men who framed the Constitution, and the people who approved it, believed life and liberty would not be adequately secured except through the unanimous verdict of twelve jurors. That settled it.

For seventy years the Court kept saying it. A year after Thompson, Capital Traction Co. v. Hof called trial by jury, in its primary and usual sense, a trial by a jury of twelve men. Maxwell v. Dow, in 1900, found no doubt that the Sixth Amendment intended twelve. Rasmussen v. United States, in 1905, spoke of the right to be tried by a jury of twelve persons. And in Patton v. United States, in 1930, the Court said it was “not open to question” that trial by jury meant the jury of the common law. That included the element “that the jury should consist of twelve men, neither more nor less.” Three generations of justices treated the number as settled ground, the kind a court builds on without thinking about it.

The break came in 1970. Williams was tried for robbery in Florida by six jurors and sentenced to life in prison, and the Supreme Court affirmed. Justice White’s opinion in Williams v. Florida conceded the history in a breath and spent its force on function. Yes, he wrote, sometime in the fourteen hundreds the size of the jury at common law came to be fixed generally at twelve. That particular feature, though, was “a historical accident, unnecessary to effect the purposes of the jury system and wholly without significance ‘except to mystics.'” The jab about mystics he borrowed from a Harlan dissent two years earlier. To read the Sixth Amendment as forever codifying so incidental a feature, White wrote, would ascribe a blind formalism to the framers, unsupported by the history and language of the Constitution or by the Court’s past decisions. The real inquiry was functional: whether six laypeople could still stand between the accused and the accuser with common-sense judgment. The Court answered that they probably could. A footnote reserved the question of the constitutional floor and added that the Court did not doubt six was above it.

Williams is one of those cases a law student is taught to walk past. Reading it cold, with nobody’s syllabus to cushion it, I see an opinion that chose its answer first. The history section is a dismissal. The function section is a prediction, and the prediction rested on a handful of studies the Court misread, as the jury scholars now argue in detail in Kian. Justice Harlan concurred only in the result, on his own idiosyncratic theory of incorporation, and he wrote that before that day it would have been unthinkable to suggest that the Sixth Amendment’s jury was satisfied by six. Justice Marshall dissented on the point. Thompson was right when decided, he wrote, and still stated sound doctrine.

Two years later the same method dissolved unanimity. Apodaca v. Oregon held that state courts could convict on less than a unanimous vote, on Justice Powell’s lone theory that the Sixth Amendment meant one thing in federal court and something less in state court. Then the unraveling stopped on its own terms. In Ballew v. Georgia in 1978, the Court held that five jurors were too few. Justice Blackmun’s opinion leaned on the social science of group deliberation, and Justice Powell, concurring in the judgment, said the studies did not persuade him. A year later, in Burch v. Louisiana, the Court held that a six-person jury had to be unanimous. Justice Rehnquist wrote the sentence the whole line of cases had earned: “Lines must be drawn somewhere if the substance of the jury trial right is to be preserved.”

The line moved again in 2020. Evangelisto Ramos had been convicted in Louisiana on a vote of ten to two and sentenced to life without parole. In Ramos v. Louisiana the Court held, six to three, that the Sixth Amendment requires a unanimous verdict to convict in state and federal court alike. Justice Gorsuch’s opinion overruled Apodaca and did it on the strength of 1791. At the founding, the opinion showed, a jury meant a unanimous jury. Every source said so: the common law, the founding-era states, the early treatises, and this Court, repeatedly and over many years. The opinion quoted Blackstone’s twelve equals and neighbors, and it answered the charge that the original meaning had been lost to time by pointing out that the Court had been saying the same thing all along. It also told the truth about where Louisiana’s rule came from. The constitutional convention of 1898 was called, in the words of its judiciary chairman, to “establish the supremacy of the white race.” Its delegates sculpted a “facially race-neutral” rule permitting ten-to-two verdicts in order “to ensure that African-American juror service would be meaningless.”

Justice Kavanaugh concurred in Ramos. He laid out three considerations for overruling a constitutional precedent: egregious wrongness, significant negative consequences, and reliance interests left undisturbed. Justice Alito dissented, joined by the Chief Justice and Justice Kagan, warning that the reliance interests were massive and concrete, though even the dissent counted the affected convictions in the hundreds. Gorsuch closed his opinion with the sentence that frames everything since. Every judge must learn to live with mistakes, he wrote, but “it is something else entirely to perpetuate something we all know to be wrong only because we fear the consequences of being right.” The next year, in Edwards v. Vannoy, the Court held that Ramos governs trials going forward and cases still on direct review, with closed convictions left closed. That holding answers the loudest objection Florida has.

Gorsuch has been pointing at Williams for years. In November 2022 he dissented from the denial of certiorari in Khorrami v. Arizona. Williams, he wrote, “was wrong the day it was decided, it remains wrong today,” and it “impairs both the integrity of the American criminal justice system and the liberties of those who come before our Nation’s courts.” Arizona had convicted Ramin Khorrami of fraud with eight jurors, and Justice Kavanaugh noted that he would have granted the petition. In May 2024, when the Court refused a batch of Florida petitions, Gorsuch dissented again, this time in Cunningham v. Florida. Natoya Cunningham had been sent to prison for eight years, he wrote, “on the say of just six people,” and “Florida does what the Constitution forbids because of us.” Eight years is a long time to spend in a cell because six neighbors said so. If there were not yet four votes to hear the question, he said, he could only hope someday there would be. He reminded the affected states that nothing stopped them from requiring the unanimous assent of twelve on their own. On February 23, 2026, the Court denied Minor v. Florida. Four months later it took Kian.

Florida has some true things to say. The Sixth Amendment does not say twelve, any more than it says unanimous. Williams administered a real docket under real pressure, and the states that went small did so openly, by constitution and statute, in reliance on a decision of the Supreme Court. A fifty-six-year-old precedent deserves more than a shrug. All of it is true. Ramos answers it anyway.

The method is the first casualty. Williams asked what a jury is for and predicted that six would serve. Ramos held that the jury right’s content was fixed at ratification and that functional cost-benefit analysis cannot shrink it. Those two decisions cannot both be right about how the Sixth Amendment is read, and the Court has already chosen. If 1791 fixes unanimity, 1791 fixes the number, because the sources are identical. Ramos built its unanimity holding out of the common-law shelf: Thompson, Hof, Maxwell, Patton, Hale, Blackstone, the Judiciary Act of 1789. The same shelf says twelve, in the same voice it says unanimous. The Court that restored unanimity on the strength of 1791 has already written most of the Kian opinion.

Kavanaugh’s three considerations map onto Williams with embarrassing ease. Williams was egregiously wrong on his test, a decision that dismissed seven centuries in a few pages, borrowed its best line from a dissent, and rested a prediction on research it misread. Its consequences fill the dockets of Florida and five other states. Its reliance interests are real, and Edwards answers them. Closed cases stay closed, and a ruling for Kian would govern trials from here forward and appeals still live on direct review. What Florida calls reliance is mostly a claim on convenience. The people hold a reliance interest too, in the Constitution as written, the interest the Ramos opinion called perhaps the most important one.

The accident deserves its own answer. Twelve is an accident, granted. It is an accident the way a cathedral is an accident. Nobody drew the plan. Centuries of hands built it anyway, and it has carried weight the whole time. Thegns swore to it on relics in 997. Henry II’s justices carried it into every hundred in 1166. Hale called it the best method of trial the law of England had afforded. The first Congress wrote it into statute in 1789. This Court called it neither more nor less in 1898 and not open to question in 1930. A feature with that history is the load the institution has been bearing all along. Williams gave the game away in its final paragraph, where it observed that no state seats fewer than twelve when death is on the table. That observation is a concession. The number does legitimating work when the stakes are highest, and Florida knows it, because Florida reserves twelve for the cases it considers grave. Kian asks whether a serious felony is such a case. And the Constitution’s answer has been yes since before there was a Constitution.

Nebraska never let go of the number. Article I, section 6 of the 1875 constitution keeps the right of trial by jury inviolate and permits the legislature to seat fewer than twelve only in courts inferior to the district court. Felonies go to the district court, so a felony defendant in Nebraska faces twelve, as Nebraskans have faced twelve since statehood. I grew up in Lincoln, and I cannot remember the number ever being debated there, because there was nothing to debate. Florida economizes on juries. Nebraska never has.

The record ends where it began. Twelve thegns on relics at Wantage, twelve lawful men at Clarendon, twelve in the Judiciary Act of 1789, twelve chairs in a Nebraska felony courtroom this morning. Somewhere in those thousand years the accident became a promise. Florida has spent fifty-six years paying six consciences where the promise costs twelve. The Court will say this term whether the promise still holds. The justices have read the answer aloud before, and in 1898 they wrote it down. Twelve persons, neither more nor less.