This paper systematically analyses the function of intelligence in Nigeria's national security between 2011 and 2023, with a specific emphasis on countering both established and developing risks including terrorism, insurgency, banditry, cybercrime, and oil theft. The analysis reveals notable deficiencies in inter-agency cooperation, technology integration, and the incorporation of community-based intelligence, which have impeded the efficacy of intelligence operations, despite substantial investments in intelligence infrastructure. Based on Rational Choice Theory, this analysis assesses the methods by which intelligence organizations collect, analyse, and employ intelligence to reduce security threats. The study utilizes a research design that involves a thorough literature analysis to assess the current academic research on intelligence and national security in the Nigerian setting. The results emphasize the necessity for more cooperation among security services, better integration of technology, and further engagement of the community in intelligence operations. This study enhances scholarly discourse and offers practical suggestions for policymakers to bolster Nigeria's intelligence infrastructure in tackling its intricate security issues.

Intelligence, National Security, Counterterrorism

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