The courtroom proceedings in the low-level trials seen in the Ace Attorney world run on the initial trial system, which is based on the Japanese legal system. Essentially, when a person is accused of a crime, he or she is immediately given a bench trial presided by a judge, a prosecuting attorney from the state, and a defense attorney who must completely prove the accused innocent of the crime, usually by finding contradictions in witness testimonies, within three days, after which the case is consigned to a higher court. Turnabout Succession uses a jury trial instead, the result of a change in the Ace Attorney world's justice system.