Constitution of Nigeria restored democratic rule to Nigeria, and remains in force today. In January 2011, two amendments of the 1999 constitution were signed by President Goodluck Jonathan, the first modifications since the document came into use in 1999. http://nigerianfinder.com/historical-development-of-the-nigerian-constitution/ Constitution of Nigeria The Constitution of Nigeria is the supreme law of the Federal Republic of Nigeria. Nigeria has had a series of constitutions. The current constitution was enacted on 29 May 1999, inaugurating the Nigerian Fourth Republic. Nigeria's first constitutions were enacted by order in council during the colonial era, when the country was administered as a Crown Colony. The constitutions enacted
Head of state model", because the executive officials of the government are answerable solely and exclusively to a presiding, acting head of state, and is selected by and on occasion dismissed by the head of state without reference to the legislature. It is notable that some presidential systems, while not providing for collective executive accountability to the legislature, may require legislative approval for individuals prior to their assumption of cabinet office and empower the legislature to remove a president from office (for example, in the United States of America). In this case the debate centers on confirming them into office, not removing them