Gwajin da alkali mai shari'a ya lura dashi ba tare da nuna bangaranci ba shine shari'a mai adalci. Hakkoki daban-daban masu alaƙa da shari'ar gaskiya an yi shelar su a fili a cikin Mataki na 10 na Bayyanar da Duniya game da 'Yancin Dan Adam, da Kwaskwarima na shida ga Tsarin Mulkin Amurka, da Mataki na 6 na Yarjejeniyar Turai na' Yancin Dan Adam, da kuma sauran kundin tsarin mulki da shela da yawa a ko'ina duniya. Babu wata dokar kasa da kasa mai daurewa wacce ke bayyana abin da ba fitina ba ce; alal misali, haƙƙin shari'ar yanke hukunci da sauran mahimman hanyoyi sun bambanta daga ƙasa zuwa ƙasa. Haƙƙin fitina cikin adalci yana da matukar taimako wajen bincika a cikin maganganu da yawa waɗanda ke wakiltar dokokin ƙasa da na gargajiya, kamar Sanarwar Universalan Adam na Duniya (UDHR).