ABSTRACT
Crime has been a major subject of concern throughout human history. No society is free of crime and criminals. The Nigeria Police Force is an agency established by law to ensure preservation of public order and law enforcement as well as prevention and detection of crime. The police plays vital role in the administration of justice in any society. The police present the entry point into the criminal justice system either through reports from the public or its own investigation and surveillance. It is therefore a fact that an average citizen has contact with the police more than with any other agency for administration of criminal justice. This thesis examines the role of Nigeria police in the administration of justice. The main objectives of this thesis are to critically analyse the role of the police in the administration of justice; to identify challenges militating against the police in the areas of crime control and detection. The thesis observes that some legal provisions on the operation and function of police have negatively affected the operational capacity of the police for example, section 214(3) and 4 of the 1999 Constitution of Nigeria just to mention a few.