After a jury venire is selected and all parties have been excluded, exempted, or excused, the remaining prospective jurors are subject to additional questioning about their possible biases. This is known as 'voir dire'. If a prospective juror has or if it appears that he has a financial stake in the outcome of the trial, he may be removed. Removal is warranted if his immediate family has a financial interest. In addition, if a party has sufficient reason to believe that the juror may be unable to render impartial service, that juror may be removed under a challenge for cause. There is no limit to the number of challenges for cause.
A peremptory challenge is a challenge to a prospective juror without a showing of cause. In federal court, each party is entitled to three peremptory challenges, and in state court parties are usually entitled to six. The judge asks the questions in most jurisdictions. The judge must ask all proper questions submitted by counsel. In other jurisdictions, the attorneys are allowed to ask the questions. The questions are limited to grounds that may provide a basis for excusing jurors for cause. In jurisdictions that give attorneys the ...