Sharia in Nigeria
In Nigeria, Sharia has been instituted as a main body of civil and criminal law in 9 Muslim-majority and in some parts of 3 Muslim-plurality states since 1999, when then-Zamfara State governor Ahmad Rufai Sani began the push for the institution of Sharia at the state level of government.
As of 2012, the following 9 states have instituted Sharia:
- Zamfara State (January 27, 2000)
- Kano State (June 21, 2000)
- Sokoto State
- Katsina State
- Bauchi State (June 2001)
- Borno State
- Jigawa State
- Kebbi State
- Yobe State
the following 3 states have also instituted sharia in some parts with large Muslim populations
There have been numerous riots over the implementation of sharia law, primarily involving non-Muslim minorities in the states which implemented the system. One such riot killed over 100 people in October 2001 in Kano State.
In 2002, negative light was brought to sharia in northern Nigeria when Amina Lawal, a single mother in Katsina State, was accused of adultery and sentenced to death by stoning by a state Sharia court for conceiving a child out of wedlock; the father was released without conviction for lack of evidence. The conviction provoked outrage both in southern Nigeria and the West, with many national and international NGOs lobbying the federal government to overturn the conviction. In 2004, the conviction was overturned by the Sharia court of appeal, and Lawal returned to private life.
In 2014 a Nigerian man, Mubarak Bala was forcibly committed to a psychiatric institution in Kano for eighteen days, where he was forcibly drugged after stating that he was an atheist. The International Humanist and Ethical Union took up the case, stating that Bala's human rights were violated. 
- Nigeria Sharia architect defends law, BBC News, 21 March 2002
- Obasanjo Assesses Riot Damage in Kano - 2001-10-16. Voice of America News.
- "Kano: Nigeria's ancient city-state". BBC online (BBC). 2004-05-20. Retrieved 2007-07-12.
- Nigeria atheist Bala 'deemed mentally ill in Kano state'
- Nigeria: First Execution under Sharia Condemned, Human Rights Watch, January 8, 2002