Death Penalty Law Status in Nigeria: A review
Retentionist. Nigeria last executed three individuals in 2016.
Methods of Execution
A person sentenced to death by a Shariah court in the Northern Region for certain types of offenses may be executed by beheading.
Hanging is the most frequently applicable method of execution. Capital sentences passed under federal criminal legislation lead to execution by hanging. Under Shariah law (applied in some northern Nigerian states), executions may be carried out by hanging for certain types of offenses. In Lagos state, however, execution by hanging may be unconstitutional since a 2012 decision by the High Court of Lagos.
Since 2015, lethal injection is a permitted method of execution pursuant to the Administration of Criminal Justice Act. Nigeria had not executed any prisoner by lethal injection as of April 2019.
Under the Federal Robbery and Firearms (Special Provisions) Act, applicable in all states of the federation and the Federal Capital Territory, death sentences can be carried out by firing squad, if so decided by the governor. Under Shariah law, applied in some northern Nigerian states, executions can be carried out by firing squad for certain types of offenses. [In Lagos state, however, execution by firing squad may be unconstitutional since a 2012 decision by the High Court of Lagos.
Stoning (rajm) is a Shariah punishment applied in some northern Nigerian states and reserved for Muslims. The punishment applies for zina (adultery), rape (if the offender is married),  incest (if the offender is married),and homosexual sodomy.
Under Shariah law, crucifixion (salb) is used to punish hirabah—the act of terrorizing people for the purpose of robbery resulting in death and when property is seized. Nigerian states differ on what is meant by “crucifixion.”
Nigerian constitution , Cornwall’s Law school & university of Zaria
By: Shirley Aipoh on Facebook