During jury selection, lawyers are trying to predict how each prospective juror will actually behave once the evidence starts coming in and deliberations begin. What lawyers look for in jury selection falls into a few practical categories: background and life experience, personal attitudes and potential biases, willingness to follow the judge’s instructions on the law, and the way a juror carries themselves while answering questions. Everything they notice feeds two decisions. Can they persuade the judge to remove this juror for stated bias, or do they need to spend one of a limited number of no-explanation strikes to get rid of them?
The questioning phase itself is called voir dire. In federal court, the judge may conduct it directly or let the attorneys do it, and even when the judge takes the lead, lawyers have the right to ask follow-up questions or submit additional ones.1Justia. Federal Rules of Criminal Procedure Fed. R. Crim. P. 24 – Trial Jurors State courts vary, with some allowing extensive attorney questioning and others keeping lawyers on a short leash.
Background and Life Experience
Occupation is one of the first things lawyers zero in on. An engineer might approach evidence methodically and demand precise proof. A social worker might bring more empathy to a defendant’s circumstances. Neither reaction is wrong, but each matters to an attorney building a case around a particular emotional register or logical framework. Education, family situation, neighborhood, and hobbies all feed into this picture.
Prior contact with the legal system carries even more weight. Someone who has served on a jury before already has opinions about how deliberations work and may assume a leadership role in the jury room. A person who was the victim of a violent crime may struggle to stay neutral in a criminal assault trial, even with the best intentions. Someone who went through a contentious divorce might view a family-related civil case through that lens. Lawyers ask about these experiences not to judge people but to predict how those people will process what they hear at trial.
Attitudes and Potential Biases
Background tells lawyers who someone is. Attitudes tell them how that person thinks. Attorneys use open-ended questions to surface opinions that could function as a filter on the evidence. In a drug case, a lawyer might ask how a juror feels about the war on drugs or whether they consider addiction a moral failing. In a medical malpractice case, attitudes toward the healthcare system or toward lawsuits generally matter enormously.
The most revealing questions are the ones that invite disagreement. Experienced trial lawyers know that a juror who says all the right things about fairness but tenses up when discussing a particular topic is giving more honest information through the tension than through the words. Lawyers also listen for absolutist language. A juror who says “I could never convict someone based on one witness” or “corporations always put profits over safety” has already made up their mind on a key issue before opening statements. Identifying these fixed positions is one of the primary goals of voir dire, because these are the jurors who cannot realistically set their views aside.
Willingness to Follow the Law
Every trial hinges on jurors applying the law as the judge explains it, not as they wish it were. In criminal cases, the judge instructs the jury that the defendant is presumed innocent and the government bears the burden of proving guilt beyond a reasonable doubt.2United States Courts. Handbook for Trial Jurors Serving in the United States District Courts In civil cases, the standard is lower, typically a preponderance of the evidence. Lawyers test whether jurors genuinely understand these standards and can apply them even when their gut tells them something different.
This is where a lot of jurors who seem perfectly fair run into trouble. A prospective juror might sincerely believe they can be impartial, but when a defense attorney asks whether they could vote not guilty even if they personally believe the defendant probably did it, as long as the prosecution has not met its burden, the hesitation in the answer tells the real story. Lawyers also watch for whether jurors can follow instructions to disregard certain evidence. If the judge strikes testimony from the record, jurors are supposed to ignore it entirely. Some people simply cannot do that, and attorneys try to identify them before they end up in the jury box.
Body Language and Demeanor
What jurors say matters. How they say it sometimes matters more. Lawyers watch for crossed arms when sensitive topics come up, eye contact that disappears when a juror gives an answer they know sounds better than it is, and the difference between someone leaning forward engaged in the conversation and someone who clearly wants to be anywhere else. These observations are imperfect and lawyers know it, but when you have fifteen minutes to evaluate a stranger, nonverbal cues fill gaps that words leave open.
Attorneys also size up a juror’s potential influence during deliberations. A confident, articulate person who makes eye contact and speaks in complete thoughts is more likely to sway others than a juror who gives one-word answers and avoids attention. Depending on which side the lawyer represents, that leadership quality is either a major asset or a serious threat. Trial lawyers often say they are not just picking twelve individuals; they are assembling a group dynamic. One forceful personality in the jury room can move the entire verdict.
What Lawyers Already Know Before You Open Your Mouth
Modern jury selection starts well before anyone walks into a courtroom. Many courts send prospective jurors a written qualification questionnaire covering basics like address, occupation, and any relationship to the parties or attorneys in the case.3United States Courts. Juror Selection Process In complex or high-profile trials, courts sometimes add a supplemental questionnaire with case-specific questions. Lawyers review those answers before voir dire begins, which lets them walk in with a preliminary sense of who might be a problem.
Attorneys also research prospective jurors online once they receive the jury list. Public social media profiles, news archives, court records, and property data can reveal far more than a juror would volunteer in a ten-minute conversation in open court. A Facebook post expressing strong opinions about police, a history of filing lawsuits, or a LinkedIn profile showing employment at a company involved in the litigation all shape how a lawyer approaches questioning. The broad consensus is that lawyers may view publicly available profiles as long as they do not communicate with the juror in any way; the ABA’s professional conduct rules prohibit lawyers from communicating with prospective jurors outside of authorized proceedings.4American Bar Association. Rule 3.5 – Impartiality and Decorum of the Tribunal
How Observations Translate into Strikes
Everything lawyers notice during voir dire feeds into two tools for removing jurors, and the shape of those tools explains why attorneys ask the questions they do.
A challenge for cause asks the judge to remove a juror for a specific, stated reason, usually that the juror cannot be impartial. There is no cap on how many for-cause challenges a side may raise.5United States Courts. Participate in the Judicial Process – Rule of Law But the judge decides whether the reason holds up, so these challenges only succeed when a juror’s bias is clear. A juror who admits they cannot be fair, who has a personal relationship with someone involved in the case, or who has a financial stake in the outcome will almost certainly be removed for cause. The harder calls involve jurors who express a leaning but insist they can set it aside. Judges often give those jurors the benefit of the doubt.
That is where peremptory challenges come in. A peremptory lets a lawyer remove a juror without giving any reason at all, but each side gets only a limited number, and the exact count depends on whether the case is criminal or civil, state or federal, and how serious the charge is.1Justia. Federal Rules of Criminal Procedure Fed. R. Crim. P. 24 – Trial Jurors6Office of the Law Revision Counsel. 28 USC 1870 – Challenges Because peremptory strikes are scarce, lawyers spend them strategically. An attorney who has a bad feeling about a juror but cannot articulate a specific bias to the judge will burn a peremptory rather than lose a for-cause challenge. This is also why so much of voir dire focuses on drawing out admissions of bias. If a lawyer can get a juror to acknowledge a strong leaning on the record, the judge is more likely to grant a for-cause removal, which preserves peremptory strikes for jurors whose bias is felt but not provable.
The Limit on Peremptory Strikes
Peremptory challenges come with one major constitutional restriction. Under the Supreme Court’s 1986 decision in Batson v. Kentucky, lawyers cannot use peremptory strikes to remove jurors because of their race. The Court held that the Equal Protection Clause “forbids the prosecutor to challenge potential jurors solely on account of their race or on the assumption that black jurors as a group will be unable impartially to consider the State’s case against a black defendant.”7Justia. Batson v. Kentucky, 476 U.S. 79 (1986) The Court later extended that protection to gender-based strikes, holding that “gender, like race, is an unconstitutional proxy for juror competence and impartiality.”8Legal Information Institute. J.E.B. v. Alabama ex rel. T.B., 511 U.S. 127 (1994)
The rule works through a three-step process. The opposing party points out a pattern suggesting race-based strikes. The lawyer who made the strikes then offers a race-neutral explanation for each one. The judge decides whether the explanation is genuine or a pretext.7Justia. Batson v. Kentucky, 476 U.S. 79 (1986) In practice, Batson challenges succeed less often than people expect. The bar for a race-neutral explanation is low: a juror’s demeanor, specific answers, or employment history will usually clear it. The explanation does not have to be persuasive, just facially unrelated to race. Some states have responded by tightening that standard or eliminating peremptory challenges altogether in certain case types.