Every criminal jury in the United States is given the same core rule. The government must prove guilt beyond a reasonable doubt. The phrase was back in a Massachusetts courtroom on September 29, when lawyers for Lindsay Clancy argued that the lone juror who held out for a murder conviction did not follow the judge's instructions on reasonable doubt, Fox 9 reported.
The holdout, Michael Desronvil, has said "I didn't have any doubts." His attorney, Edward Paltzik, said his client "had zero doubt." Judge William Sullivan did not rule on the defense motions that day and set another hearing for November 2. The dispute raises a question jurors ask all the time. What does reasonable doubt actually mean?
A constitutional rule with no fixed wording
The standard is required by the Constitution. In the 1970 case In re Winship, the Supreme Court held that due process protects the accused against conviction "except upon proof beyond a reasonable doubt of every fact necessary to constitute the crime with which he is charged," as the Constitution Annotated explains. In Sullivan v. Louisiana in 1993, the Court added that the Sixth Amendment right to a jury requires a jury verdict of guilt beyond a reasonable doubt.
What the Court has not done is write a required definition. In Victor v. Nebraska in 1994, the justices said the Constitution "does not dictate that any particular form of words be used," according to the Court's syllabus. The test is whether the instructions, taken as a whole, correctly convey the idea to jurors.
The Court has struck down wording that gets it wrong. In Cage v. Louisiana in 1990, a Louisiana instruction described reasonable doubt as a "grave uncertainty" and a "substantial doubt" and spoke of "moral certainty." The Court held that the instruction violated due process because it overstated how much doubt a juror needs before voting to acquit.
Four years later, in Victor, the Court said it "does not condone the use of the antiquated 'moral certainty' phrase" but upheld the instructions in that case because other language made the meaning clear.
What jurors actually hear
Many courts give jurors model, or pattern, instructions. One version describes a reasonable doubt as "a doubt that would cause a reasonable person to hesitate to act." The Victor syllabus notes that the Court "has repeatedly approved" that wording because it gives jurors a common sense benchmark.
Federal courts in the western states use different language. The Ninth Circuit's model instruction tells jurors that proof beyond a reasonable doubt is proof that leaves them firmly convinced the defendant is guilty. The government does not have to rule out every possible doubt.
Under that instruction, a reasonable doubt is one based on reason and common sense, not speculation. It can come from a careful look at the evidence or from a lack of evidence. If jurors are not convinced after an impartial review of all the evidence, they must acquit. If they are convinced, they must convict.
The commentary to that instruction quotes the Supreme Court's line that "A fanciful doubt is not a reasonable doubt." It also notes that in 2021 the Ninth Circuit upheld the instruction itself but sent a case back because a prosecutor had compared the standard to everyday decisions in a misleading way. The same commentary warns against verdict forms that ask jurors to find a defendant "not guilty beyond a reasonable doubt" in order to acquit.
Why one juror matters
Reasonable doubt is applied by each juror individually, which is why a single vote can stop a case. The Clancy jury could not reach a unanimous verdict, and the judge declared a mistrial. The holdout did not join the other 11 jurors, who were reportedly prepared to find her not guilty by reason of insanity. Prosecutors have not said whether they will retry her.
The standard can decide even the most watched trials. Our look back at the Michael Jackson case shows how a jury can find the evidence troubling and still conclude the state did not meet its burden. For more on the Clancy deadlock, see our coverage of the 11 to 1 hung jury, which Daniel Rosenberg and Michael Dye broke down in Episode 90.
This article is general information about how the law works, not legal advice.
Two Taps News stories summarize reporting and the analysis discussed on Two Taps and Friends. They are not legal advice. Read our standards.
