Naburgi, Musa Mohammed2023-12-112023-12-112019-11-20Adeniyi, A.A. (2004). Auditing and Investigations Wyse Associates Limited, Ikeja Nigeria. Pp.204 American Institute of Certified Public Accountants (AICPA). (1988). Statement on Auditing Standards No. 53, The Auditor's Responsibility to Detect and Report Errors and Irregularities, New York. American Institute of Certified Public Accountants (AICPA). (1996). Statement on Auditing Standards No. 78, Consideration of Internal Control in a Financial Statement Audit: An Amendment to SAS No. 55, New York. Amudo, A., & Inanga, E. L. (2009). Evaluation of Internal Control Systems: A CaseStudy from Uganda. Euro Journals Publishing.pp. 124-144. Assurance in Education. Vol. 10. Oni, A.S., Ishola, O.P., & Oyedepo, O.F. (2021). Effect of internal control system on fraud prevention among deposit money banks in Kwara State, Nigeria. International Journal of Multidisciplinary Research and Growth Evaluation, 2(1), 264-271. Barker, E. (1999). Organization and Management Accounting Hill Book Company Inc. New York. P60 Committee of Sponsoring Organisations of the Tread way Commission (COSO). (1994). “Internal control - integrated framework”. USAhttps://keffi.nsuk.edu.ng/handle/20.500.14448/2149The study examines the effect of internal control system in terms of control environment, control activities, risk management, information and communication, and monitoring on fraud control of federal ministries of finance, works and environment in Nigeria. The study adopts survey design as questionnaire was administered to the selected sampled respondents of 384 from the population of 6125. It was found from the regression results and analysis that, control activities, risk management, information and communication and monitoring to be significant positively related to fraud control in federal ministries of finance, works and environment in Nigeria. However, an insignificant positive effect of control environment on fraud control in federal ministries of finance, works and environment in Nigeria was found. Thus the study concludes that internal control system is significant and positively related to fraud control in federal ministries of finance, works and environment in Nigeria. The study recommends among others that, federal government should make sure that different persons make authorizations and approvals, verifications, reconciliations, reviews of performance, security of assets, and controls over information systems. This means that, there should be segregation of duties among the staffers of ministries. No one person should be allowed to make authorization, approval, and verifications.enControl Environment, Control Activities, Risk Management, Information and Communication, Monitoring, Fraud Control, Public Sector, NigeriaArticle