Criminal Procedure in Nigeria

Introduction

Criminal procedure in Nigeria is governed primarily by the Administration of Criminal Justice Act (ACJA) 2015, which applies to federal courts and the Federal Capital Territory, Abuja. States have their own Administration of Criminal Justice Laws (ACJL) modeled on the ACJA. Criminal procedure regulates the process from arrest through trial to sentencing and appeal, balancing the need for effective law enforcement with the protection of accused persons’ rights under Chapter IV of the Constitution.

Arrest

Arrest may be made with or without a warrant. Section 3 of the ACJA requires that a person arrested be informed immediately of the grounds of arrest and has the right to remain silent. The arrested person must be brought before a court within 24 to 48 hours (section 35 of the Constitution). The police may grant bail to a person arrested for a bailable offense pending investigation.

Bail

Bail is the release of an accused person from custody pending trial. The Constitution guarantees bail as of right for most offenses. The court considers several factors in granting bail:

  • The nature and gravity of the offense
  • The likelihood of the accused absconding
  • The accused’s criminal record
  • The need to protect the community
  • The accused’s ties to the community

Section 162 of the ACJA provides guidelines for bail, requiring the court to consider whether there are substantial grounds to believe the accused would fail to appear for trial, interfere with witnesses, or commit further offenses.

Pre-Trial Procedure

Following arrest and bail, the pre-trial procedure includes:

Investigation

The police conduct investigations, gather evidence, and prepare a case file for the prosecution.

Filing of Charges

The prosecution files a charge sheet or information in court, specifying the offenses alleged and the particulars.

First Appearance

The accused appears in court for the first time for arraignment. The charges are read, and the accused enters a plea.

Arraignment and Plea

Arraignment is the formal reading of charges to the accused in court. The accused must plead personally to each count. If the accused pleads guilty, the court proceeds to conviction and sentencing. If the accused pleads not guilty, the court sets the matter down for trial.

Trial Procedure

The trial follows the adversarial model. The prosecution presents its case first, calling witnesses and tendering evidence. At the close of the prosecution’s case, the defense may make a no-case submission, arguing that the prosecution has failed to establish a prima facie case. If the submission succeeds, the accused is discharged.

If a prima facie case is established, the defense presents its case, calling witnesses and tendering evidence. The accused may testify or remain silent. The court then delivers judgment, either convicting or acquitting the accused.

Sentencing

If the accused is convicted, the court proceeds to sentencing. The ACJA requires the court to consider:

  • The circumstances of the offense
  • The character and antecedents of the offender
  • The need for deterrence
  • The possibility of non-custodial sentencing options

Sentencing options include imprisonment, fines, community service, probation, and conditional discharge.

Appeals

The convicted person has a right of appeal to a higher court. Appeals lie:

  • From magistrates’ courts to the High Court
  • From the High Court to the Court of Appeal
  • From the Court of Appeal to the Supreme Court

The prosecution may appeal against sentence or on questions of law, but not against acquittal.

Conclusion

Criminal procedure in Nigeria is governed by the ACJA 2015 and state ACJLs, providing a framework that balances effective law enforcement with the protection of constitutional rights. The procedure ensures fair trial rights, including the presumption of innocence, the right to legal representation, and the right to appeal. Reforms continue to address delays, improve case management, and enhance the efficiency of the criminal justice system.