For the purposes of the federal Armed Career Criminal Act (ACCA), burglary is considered a violent felony. When someone has two or more violent felony convictions, whether state or federal crimes, they may encounter the ACCA if they are then convicted federally of unlawful firearms possession. Such a conviction carries a mandatory 15-year prison sentence.
When prosecutors and defense attorneys choose jurors from a pool, they are allowed to reject some jurors, either for good cause or in what is called a "preemptory challenge." Jurors can be removed for cause, for example, when they are unqualified to serve, have a conflict of interest, or admit that they cannot put aside their biases. Each side gets a limited number of preemptory challenges that can be used to strike jurors without a specific cause.