Mai jarrabawar Ji shi ne mutumin da ke gudanar da shari’a ko shari’a don warware husuma, yanke shawara ko shawarwari, da bayar da umarni ko hukunci. Yawancin hukumomin gwamnati suna aiki da su, kamar kotunan gudanarwa, don sauraron ƙararraki da yanke hukunci a fannoni kamar dokar aiki, dokar muhalli, dokar yanki, ko wasu wuraren ƙa'ida. Matsayin mai binciken ji shine gudanar da shari'ar gaskiya kuma ba tare da son kai ba, duba shaidu da shaida, da bayar da shawara ko shawara a rubuce bisa ga gaskiyar da aka gabatar.