8 GCA § 85.30: Peremptory Challenges; Number Available.

In a prosecution by indictment or information if the offense charged is punishable by a life sentence, each side is entitled to twenty peremptory challenges, otherwise the government is entitled to six peremptory challenges and the defendant or defendants jointly to ten peremptory challenges. In a prosecution by complaint, each side is entitled to three peremptory challenges. If there is more than one defendant, the court may allow the defendants additional peremptory challenges and permit them to be exercised separately or jointly.