Hierarchy of Courts in Nigeria
The hierarchy of courts in Nigeria is the institutional structure through which judicial power is organized and exercised. It determines the appellate path of cases, the binding force of judicial decisions, and the relationship between superior and inferior courts.
A clear understanding of this hierarchy is essential because the authority of a court depends not only on jurisdiction over subject matter, but also on its place within the judicial system.
The Supreme Court
At the apex of the hierarchy is the Supreme Court of Nigeria. It is the highest court in the country and, in most matters, the final court of appeal. Its decisions bind all other courts in Nigeria.
The Supreme Court performs a unifying function by settling disputes of national importance, interpreting the Constitution, and ensuring consistency in legal doctrine. Because there is no further appeal beyond it within the domestic system, its pronouncements carry the highest precedential authority.
The Court of Appeal
Below the Supreme Court is the Court of Appeal. It hears appeals from the Federal High Court, State High Courts, the High Court of the Federal Capital Territory, the National Industrial Court, Sharia Courts of Appeal, Customary Courts of Appeal, election tribunals, and other bodies recognized by law.
The Court of Appeal occupies a crucial position because it reviews a wide range of trial and specialized decisions and often provides the immediate appellate guidance that shapes legal practice across the country.
The High Courts and Other Superior Courts
The Federal High Court is a superior court of record with jurisdiction over matters assigned to it by the Constitution and federal statutes. These include areas such as revenue of the Federation, admiralty, banking in certain contexts, companies, customs, immigration, and matters involving federal agencies within constitutional limits.
State High Courts possess broad general jurisdiction over civil and criminal matters except where jurisdiction is expressly vested in another court. The High Court of the Federal Capital Territory occupies a similar status within the FCT.
The National Industrial Court
The National Industrial Court is also a superior court of record and has specialized jurisdiction over labour, employment, trade unions, industrial relations, and related matters. Its constitutional importance reflects the increasing specialization of adjudication in Nigeria.
Sharia Courts of Appeal and Customary Courts of Appeal
Sharia Courts of Appeal and Customary Courts of Appeal exist where established and exercise appellate and supervisory jurisdiction in matters of Islamic personal law and customary law respectively, within constitutional limits.
Inferior Courts
Below the superior courts are magistrates’ courts, district courts, area courts, customary courts, and other inferior courts or tribunals created by state law. Their jurisdiction varies from state to state and often depends on subject matter, monetary limits, or local legal structure.
Although they are lower in the hierarchy, they are indispensable to the administration of justice because they handle a substantial volume of everyday disputes and criminal proceedings.
Hierarchy and Precedent
The hierarchy of courts matters most clearly in relation to precedent. Lower courts are bound by the decisions of higher courts. A High Court must follow the Court of Appeal and the Supreme Court. The Court of Appeal must follow the Supreme Court. No lower court has authority to disregard or overrule a superior court.
In Ogunsola v. NICON, Suit No. SC.231/2003, the Supreme Court reaffirmed the binding nature of superior court decisions. In Kanawa v. Independent National Electoral Commission, Suit No. SC.1010/2020, the Supreme Court reiterated that a lower court cannot question the correctness of a binding precedent from a higher court.
Practical Importance of Court Hierarchy
The hierarchy of courts affects litigation strategy, forum selection, and appellate review. A lawyer must know where to commence an action, where an appeal lies, and which authorities are binding on the court before which the matter is pending.
The structure is therefore not merely administrative. It is a core part of legal method in Nigeria and one of the main mechanisms through which coherence is maintained in the judicial system.