What are the prerequisites for the appointed arbitrator (*Hakam*) when the besieged submit to his judgment?

Primary text

Seven conditions must be met for the arbitrator: he must be free, Muslim, sane, adult, male, just (*'adil*), and a jurist (*faqih*), similar to the requirements for a Muslim ruler's judge. The arbitrator may be blind, as the objective is his opinion and knowledge of public interest regarding the specific ruling, which sight does not affect, unlike judicial rulings where sight is necessary to distinguish parties and witnesses.