Jury Service and Jury Trials: Selection and Waiver
Jury service begins with names drawn at random from voter and driver records, followed by a qualification questionnaire and a summons. The Sixth Amendment gives criminal defendants a jury in serious cases, and the Seventh Amendment preserves juries in many civil suits. Waiver means giving up that right, and in criminal cases it requires the prosecutor's consent and the court's approval.
Jury service is the process by which ordinary residents are summoned to a courthouse to decide the facts in a trial. The pool of potential jurors is assembled from lists that courts maintain, most often voter registration records and driver or state identification records, and jurors are then drawn at random from that pool. The right to a jury trial is a constitutional guarantee rather than a courtesy a court extends: the Sixth Amendment protects criminal defendants in federal court, and the Seventh Amendment preserves juries in many federal civil cases. Waiver means giving up that right, and it follows specific rules. In a criminal case a defendant cannot simply choose to be tried by a judge, because the prosecution and the court must agree. In a civil case a party that does not demand a jury in the manner the rules require generally loses the right.
Those three ideas, how the pool is built, what the right covers, and what waiver does, explain most of what happens between a jury summons and a verdict. The descriptions below follow the federal system and note where state courts diverge.
How the jury pool is assembled
Federal district courts do not rely on volunteers. Each court maintains what the law calls a master jury wheel, a database of names drawn from sources the court has approved. The U.S. Courts explain that voter registration lists and driver records are the most common sources, and that courts may supplement them with other lists so the pool reflects the community. Names are then selected at random for each jury term or trial.
People whose names are drawn receive a qualification questionnaire. Federal law sets basic qualifications, including citizenship, a minimum age, residence in the district for a required period, and the ability to read, write and understand English. The questionnaire also asks about disqualifications, such as a pending felony charge or a prior felony conviction, and about grounds for being excused, such as a documented hardship. Those who qualify form the pool from which courtroom panels are drawn.
A jury summons is a court order rather than an invitation, and courts can hold someone in contempt for failing to appear, although they commonly excuse or defer service for genuine hardship.
From the pool to the jury box
When a panel is sent to a courtroom, the judge and the lawyers question the potential jurors in a process called voir dire, a term meaning to speak the truth. The goal is to identify people who cannot decide the case fairly and to empanel a group that can.
- Challenge for cause removes a juror for a stated reason the judge accepts, such as a personal connection to a party or an expressed inability to follow the law. There is no fixed limit on these challenges, but each one must be justified.
- Peremptory challenge removes a juror without a stated reason. The number allowed is set by rule or statute and is limited. Under Supreme Court precedent, peremptory challenges may not be used to strike jurors solely because of race or sex.
- Alternate jurors are chosen with the panel and replace jurors who become unable to serve, so a trial can continue without starting over.
Selection rules are designed to produce a jury drawn from a fair cross-section of the community rather than a group assembled for a particular outcome.
Grand juries and trial juries
A trial jury, often called a petit jury, hears evidence in open court and returns a verdict. A grand jury is a different body. Under the Fifth Amendment grand jury clause, federal prosecutions for serious crimes generally begin with an indictment returned by a grand jury. A grand jury does not decide guilt; it reviews whether there is enough evidence to charge, normally hears only the prosecution's evidence, and does not work with a judge presiding over that presentation. Someone summoned for jury service may be called for either role.
What the right to a jury trial covers
Criminal cases
The Sixth Amendment guarantees a jury trial in federal criminal prosecutions. Courts have read that guarantee to apply to serious offenses, meaning those for which conviction could carry substantial imprisonment, while petty offenses with minor penalties may be tried without a jury. The right belongs to the defendant, and states provide it through the same amendment as applied to them and through their own constitutions. In federal criminal trials the verdict must be unanimous. Background on how charges proceed appears in the U.S. Courts overview of criminal cases.
Civil cases
The Seventh Amendment preserves the right to a jury trial in suits at common law where the amount in controversy exceeds the sum the amendment names, twenty dollars, language drafted when the amendment was ratified that courts now translate into the modern distinction between legal claims, which may carry a jury right, and equitable claims such as injunctions, which generally do not. The right is not automatic. Federal procedure requires a party to demand a jury in a timely filing, and a party that does not do so is generally treated as having waived it. Many categories of disputes, including small claims, most family and probate matters, and administrative hearings, are governed by state rules that often provide no jury at all.
| Feature | Criminal cases | Civil cases |
|---|---|---|
| Source of the right | Sixth Amendment | Seventh Amendment |
| Who holds the right | The defendant | Either party, if the claim is legal rather than equitable |
| Is a jury automatic | Yes, unless the defendant waives with the government consent and the court approval | No; a party must demand a jury within the time the rules allow |
| Typical size | Twelve in serious federal trials, unless the parties stipulate to fewer | Smaller panels are permitted under the civil rules |
| Unanimity | Required in federal criminal trials | Rules and local practice govern; limited exceptions exist in some jurisdictions |
| Who decides without a jury | The judge, in a bench trial | The judge, in a bench trial |
Waiver of the right to a jury trial
Criminal and civil waiver work differently. In federal criminal cases, a defendant who wants a bench trial, meaning a trial decided by the judge rather than a jury, must meet conditions set by the Federal Rules of Criminal Procedure: the waiver must be in writing, the government must consent, and the court must approve it. Prosecutors may decline, and judges may refuse a waiver they doubt is knowing and voluntary. State systems set their own requirements, and many require an in-court exchange in which the judge confirms on the record that the defendant understands what is being given up.
Civil waiver is largely procedural. Because the civil jury right must be affirmatively demanded, missing the deadline usually ends it, and courts treat the failure as a waiver. The rule that governs the demand sets the time within which it must be made.
Waiver can also happen in narrower ways during a trial. Parties may stipulate to a jury of fewer members, or to a verdict decided by a stated number of jurors, where the applicable rules permit. In each situation the waiver must be clear and reflected in the record.
Where this varies
The rules described above are federal rules, and they are not a national standard that state courts must follow. States set their own qualifications, excuse categories and terms of service, and they differ on jury size and unanimity; some allow juries of fewer than twelve in misdemeanor cases, and a limited number permit non-unanimous verdicts in narrow circumstances. Pay for jury service, the length of a term, how often someone may be summoned, and the process for requesting a deferral or excuse vary by state and by individual court. Local practice also shapes voir dire, since some judges question jurors themselves while others allow lawyers to do most of the questioning. Because the controlling rules come from state constitutions, statutes, court rules or local orders, the requirements that apply to a particular summons come from the court that issued it. The Bureau of Justice Statistics publishes national data on courts and case processing, but it does not set those rules.
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Frequently asked questions
How are people selected for jury service?
Courts build a master jury wheel from sources such as voter registration and driver records, draw names at random, and send a qualification questionnaire and summons. Those who meet the qualifications, including citizenship, minimum age, district residency and English literacy, form the pool from which panels are drawn for individual trials.
Does every criminal case end in a jury trial?
No. The Sixth Amendment right applies to serious offenses, while petty offenses with minor penalties may be tried by a judge alone. Defendants also waive jury trials and choose a bench trial. In federal court that waiver requires a written request, the prosecution consent and the judge approval.
Can a defendant be required to accept a jury trial?
No. The right belongs to the defendant, who may ask for a bench trial instead. In federal court the prosecution must agree and the judge must approve, so a waiver is not automatic. Many states require the judge to question the defendant on the record before accepting it.
What happens if a party in a civil case does not ask for a jury?
The right is generally lost. Federal civil rules require a party to demand a jury within a set time after the last pleading directed to the issue, and a party that misses that deadline is usually treated as having waived the right. State rules follow similar demand requirements.
How is a grand jury different from a trial jury?
A trial jury, or petit jury, hears evidence in open court with a judge presiding and returns a verdict. A grand jury reviews whether enough evidence exists to charge someone with a serious federal crime; it does not decide guilt and normally hears only the prosecution evidence.
Do jury rules differ from state to state?
Yes. States set their own qualifications, excusal categories, pay and terms of service, and they differ on jury size and unanimity. Local courts also handle deferrals, excuses and voir dire differently, so the rules that apply to a summons come from the court that issued it.
Written and reviewed by the InmateSearch.co Editorial Team. This page describes how the process generally works and is not legal advice.
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