Ƙasar Nijeriya tana da reshe na shari’a, tare da babbar kotu, ita ce Kotun Koli ta Najeriya. Akwai tsarin doka guda uku daban-daban a Nijeriya: Dokar gama gari, wacce aka samo daga tsohuwar mulkin mallaka na Burtaniya, da ci gabanta bayan samun ‘yanci; Dokar al’adu, wacce aka samo daga al’adun gargajiya da al’adun gargajiya, gami da tarurrukan sasanta rikice-rikice na ƙungiyoyin asirin Yarbawa kafin mulkin mallaka kamar Oyo Mesi da Ogboni, da Ekpe da Okonko na Igboland da Ibibioland; Shari’ar Musulunci, ana amfani da ita ne kawai a cikin jihohin Arewacin kasar, waɗanda galibinsu musulmai ne.
Tsarin shari’ar Musulunci ne wanda aka yi amfani da shi tun kafin mulkin mallaka. A ƙarshen 1999, Zamfara ta jaddada amfani da ita, tare da sauran jihohin Arewa goma sha ɗaya: su ne Kano, Katsina, Niger, Bauchi, Borno, Kaduna, Gombe, Sokoto, Jigawa, Yobe, da Kebbi.
Domin sanin cikakkun dokoki na Tarayyar Nijeriya danna nan