Abstract
The criminal justice system in Nigeria is one of the most heavily watched institutions in the
country due to its primary mandate of ensuring that citizens are protected from lawlessness,
criminals are prosecuted and law is maintained. Even after decades of being institutional, the
system still struggles with systemic issues that severely diminish its ability to be effective in
crime control. This study focuses on how effective Nigeria criminal justice system is in crime
control using secondary data obtained from academic literature, institutional report and
empirical study carried out from 2019 to 2025. Employing a qualitative research approach,
this study draws from past research to examine the effectiveness of law enforcement agencies,
the judiciary, and correctional facilities. It is found that the system has the structural conditions
for crime control but these are severely restricted by institutional corruption, lack of funds,
long delay in cases, overcrowding of correctional facilities, and poor coordination between
agencies. The study finds that if the criminal justice system fails to deliver the required services,
then the system's ability to effectively control crime will remain limited without a fundamental
change in institutional structure, investment in human and material resources and a genuine
approach to fight corruption. Some suggestions involve the modernization of forensic facilities,
judicial process changes, growth of community policing and the setting up of independent
oversight bodies to rebuild public trust in the administration of justice.