Grand jury selection begins with a random pull from public records and ends with a sworn panel of 16 to 23 people in federal court whose job is deciding whether enough evidence exists to charge someone with a crime. The path runs through several filters: a qualification questionnaire, a summons, an in-person screening, and a final random draw. Most people who receive a summons don’t end up seated, and the whole process is faster and less adversarial than the trial jury selection it resembles.
Who Qualifies to Serve
Federal rules are short. You must be a United States citizen, at least 18 years old, and a resident of the judicial district for at least one year.1United States Courts. Juror Qualifications, Exemptions and Excuses You also need a reasonable command of English and no mental or physical condition that would prevent you from serving.
Two things disqualify you automatically: a pending felony charge, or a prior felony conviction where your civil rights haven’t been restored.2Office of the Law Revision Counsel. 28 US Code 1865 – Qualifications for Jury Service State rules generally mirror the federal ones, with variations by jurisdiction.
How Names Are Pulled
The pool has to reflect a fair cross-section of the community. Federal courts start with voter registration lists and are required to supplement those lists with additional sources when voter rolls alone don’t produce a representative pool.3Office of the Law Revision Counsel. 28 US Code 1863 – Plan for Random Jury Selection In practice, the most common supplement is the state’s list of licensed drivers or ID holders, though each district’s jury selection plan makes the choice.
Names are drawn at random from the combined lists. Anyone selected receives a qualification questionnaire covering citizenship, residency, language ability, and disqualifying factors. Those who pass go into what’s called the qualified jury wheel. When a grand jury needs to be assembled, a subset of names is randomly pulled from that wheel, and each person receives a summons ordering them to appear at the courthouse on a specific date.
What to Do When the Summons Arrives
A grand jury summons is a court order. Ignoring it can prompt a federal judge to order you in to explain yourself, and if you don’t have a good reason, the penalty can reach a fine of up to $1,000, up to three days in jail, community service, or some combination of the three.4Office of the Law Revision Counsel. 28 US Code 1866 – Selection and Summoning of Jury Panels
Timing conflicts are common, and the court has a process. You can request a deferral, and most federal courts allow up to two postponements before you either serve or obtain an approved excuse. Typical reasons include active college enrollment, recent childbirth, seasonal work, or recovery from a medical procedure. If your postponement is granted, the court assigns a new reporting date and issues a fresh summons.
If your situation is more than bad timing, you can ask to be excused entirely. The standard is undue hardship or extreme inconvenience, decided case by case.4Office of the Law Revision Counsel. 28 US Code 1866 – Selection and Summoning of Jury Panels Being excused is not automatic. A busy work schedule usually isn’t enough on its own; the court is looking for real harm.
Screening at the Courthouse
On your reporting day, a judge or court clerk verifies that everyone in the pool meets the statutory qualifications. Some courts run a brief round of questioning, loosely called voir dire, but it looks nothing like trial jury voir dire. The questions focus on whether you can serve impartially and whether you have conflicts the questionnaire missed.
The reason for the stripped-down version is practical. A grand jury doesn’t hear one defendant’s case; it reviews many cases across its term. So there’s no reason to probe for bias toward a specific person or set of facts. The judge is screening for general fairness, ability to follow the law, and willingness to keep the proceedings confidential. Anyone who can’t meet those standards, or who shows a genuine hardship at this point, may be excused.
From the remaining qualified group, the final panel is chosen by random drawing. In federal court, the panel must have between 16 and 23 members.5Legal Information Institute. Federal Rules of Criminal Procedure Rule 6 – The Grand Jury The judge then swears in the panel and often appoints a foreperson to handle administrative duties. At that point the grand jury is seated.
What Being Seated Actually Commits You To
A federal grand jury has 16 to 23 members, and returning an indictment takes at least 12 votes in favor of charging.5Legal Information Institute. Federal Rules of Criminal Procedure Rule 6 – The Grand Jury That’s a simple threshold of the minimum panel size, not a unanimous vote.
Term length depends on the type of grand jury. A special grand jury convened under federal law serves for 18 months, with the court able to extend the term in six-month increments if the work isn’t finished. The total for a special grand jury cannot exceed 36 months.6Office of the Law Revision Counsel. 18 US Code 3331 – Summoning and Term Regular federal grand juries commonly serve up to 18 months as well, with the exact length set by the court.
The time commitment is lighter than most people expect. Grand juries don’t meet daily. A typical schedule is one or two days per week, and sometimes only a few days per month, depending on caseload. You’re hearing evidence on multiple cases across your term rather than sitting through one trial start to finish.
Pay and Job Protection
Federal grand jurors are paid $50 per day. After 45 days of service, the rate can rise to $60 per day.7United States Courts. Juror Pay The court also reimburses travel at the standard federal mileage rate, covers reasonable parking and toll costs, and pays a subsistence allowance for meals and lodging if you have to stay overnight. Federal government employees receive their regular salary instead of the daily fee.
Employment is the bigger worry for most people. Federal law makes it illegal for any employer to fire, threaten, intimidate, or coerce a permanent employee because of jury service in federal court.8Office of the Law Revision Counsel. 28 US Code 1875 – Protection of Jurors Employment An employer who violates that protection can be ordered to pay lost wages and benefits, reinstate the employee, and pay a civil penalty of up to $5,000 per violation. State laws provide similar protections, with details and penalties that vary.
Where State Selection Differs
The rules above describe federal practice. States don’t have to follow them. The Supreme Court has held since 1884 that the Fifth Amendment’s grand jury indictment requirement does not extend to the states.9Constitution Annotated. Amdt5.2.2 Grand Jury Clause Doctrine and Practice Roughly half the states still require grand jury indictments for serious felonies; the rest allow prosecutors to file charges by information after a preliminary hearing.
Selection specifics track that split. State grand jury sizes range from as few as 5 members up to 23. Terms and meeting schedules vary, and so do juror qualifications and pay, which is often lower than the federal rate and can differ between counties in the same state. If you’ve been summoned to a state grand jury, the mechanics above are a starting point rather than a rulebook; check the summons and the court’s instructions for the specifics that apply where you live.