The Board of Retainers was used as a disciplinary organ towards house vassals: brigandage and other crimes were prosecuted. The Office of Rewards was used to hear the claims of and to enfeoff deserving vassals. The Office of Rewards was used to enroll new warriors who were potential adversaries of the regime. The major judicial organ, the Board of Coadjutors, decided on all land dispute cases and quarrels involving inheritance. All judicial functions are "par excellence" used to resolve conflicts and disputes legally, within an institutional framework. Bureaucrats ("bugyōnin") for the new regime were recruited from the ranks of those who served the Hōjō regime before its fall. They were valuable because they knew how to read and write, a task beyond the reach of most warriors.