Effect of procurement fraud detection and prevention on organizational integrity in public sector organizations in Nigeria
Abstract
This study examines the effect of procurement fraud detection and prevention on organizational integrity within public sector organizations in Nigeria. Specifically, it investigates the impact of document examination, segregation of duties, and whistleblower mechanisms on organizational integrity. Using a survey research design, the study targets 844 chartered accountants with forensic certifications and executive management staff across 10 prominent public sector organizations in Nigeria, all with significant procurement activities. A stratified sampling technique was employed, yielding a sample size of 271 respondents determined by the Taro Yamane formula. Data were collected through a Likert scale questionnaire and analyzed using multi-linear regression to assess the relationship between document examination, segregation of duties, and whistleblower mechanisms (independent variables) and organizational integrity (dependent variable). Findings reveal that all three mechanisms significantly and positively influence organizational integrity, with an overall model fit of R² = 0.83. Document examination exhibited a positive impact (β = 0.30, p < 0.05), highlighting its role in reducing fraud risks through transparency in procurement processes. Segregation of duties showed a strong effect (β = 0.35, p < 0.05), suggesting that delineating responsibilities limits fraud opportunities. Similarly, whistleblower mechanisms (β = 0.31, p < 0.05) were found to foster a safe environment for reporting unethical behavior, thereby enhancing integrity. The study concludes that robust document examination, stringent segregation of duties, and effective whistleblower systems are essential to safeguarding organizational integrity in Nigeria’s public sector. It contributes to knowledge by emphasizing these mechanisms as critical elements in fraud prevention. It recommends that public sector organizations enhance staff training on document examination, strictly enforce role boundaries, and establish anonymous whistleblower channels to encourage ethical practices. These measures could strengthen integrity frameworks, reducing fraud risks and enhancing public trust in Nigerian public institutions.
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Abubakar, S. A., & Okoli, T. O. (2025). Effect of supply chain management practices on contract dispute resolution in Nigeria’s public sector. Kashere Journal of Politics and International Relations, 3(1), 1–14.
Adam, S. B., Agu, F. N., Wilfred, N. J., & Ugwuanyi, W. N. J. (2024). Impact of forensic accounting on the prevention of financial fraud in Nigerian banking institutions. Fuoye Journal of Accounting and Management, 7(1), 343–359.
Adebayo, A. O., Adenle, O. E., Ojeleye, A. D., & Ayeni, A. (2024). Forensic accounting and public procurement fraud prevention: Evidence from Osun State, Nigeria. Malete Journal of Accounting and Finance, 4(2), 232–245.
Adjorlolo, G., Tang, Z., Wauk, G., Adu Sarfo, P., Braimah, A. B., Blankson Safo, R., & N-yanyi, B. (2025). Evaluating corruption-prone public procurement stages for blockchain integration using AHP approach. Systems, 13(4), Article e267. https://doi.org/10.3390/systems13040267
Akinninyi, P. E., Akpan, D. C., & Umoren, A. O. (2025). Forensic accounting and financial integrity in the Nigerian public sector. Journal of Accounting and Financial Management, 11(3), 122–145.
Akujuru, C. A. (2024). Public procurement systems and financial accountability in the Rivers State Bureau of Public Procurement (RSBPP), 2014–2024. RJIP- Journal for Social Sciences, 2(4), 673–681.
Akram, F., & Abbas, A. (2024). Compliance and corporate integrity: Ethical considerations in state and local tax planning. ResearchGate. https://doi.org/10.13140/RG.2.2.25382.13129
Ataka, K. O. (2024). Corruption in public procurements, resilience and the impact on the state economy (a case study of Anambra state Nigeria): A qualitative analysis [Doctoral dissertation, Dublin, National College of Ireland]. Norma eResearch NCI Liberary. https://norma.ncirl.ie/7810/
Balogun, S. K., Adara, T. T., Haruna, S. S., & Azaka, L. (2025). Locus of control, social comparison and propensity to crime on predisposition towards internet fraud among the youths in Ibadan, Oyo State, Nigeria. Caritas Journal of Psychology and Behaviourial Sciences, 3(1), 62–74.
Barker, L. (2025). Managing a company in an environment with significant corruption (Publication No. 31770926) [Doctoral dissertation, St. Thomas University]. ProQuest Dissertations & Theses.
Bayo, P. L., & Emotongha, E. R. (2021). Ethical compliance and corporate reputation: A theoretical review. International Journal of Research in Education and Sustainable Development, 1(10), 90–108.
Chizoba, O. J., & Onuora, J. K. J. (2025). Effect of digital transformation on public sector accountability and transparency in Nigeria. Journal of Accounting and Financial Management, 11(1), 40–51.
Ebekozien, A. (2019). Unethical practices in procurement performance of Nigerian public building projects: mixed methods approach. Theoretical and Empirical Researches in Urban Management, 14(3), 41–61.
Edward, O. F., Adias, T. S., & Marcel, P. C. (2025). Forensic auditing: A tool for detecting fraud. BW Academic Journal, 10(2), 89–99.
Eze, G. C., Ogunsina, O., & Igwe, J. C. (2025). An appraisal of public infrastructure project procurement: Focus on transparency provisions in the Nigerian procurement act. International Journal of Real Estate, 1(1), 136–147.
Ezeji, C. L. (2024). Artificial intelligence for detecting and preventing procurement fraud. International Journal of Business Ecosystem and Strategy, 6(1), 63–73. https://doi.org/10.36096/ijbes.v6i1.477
Gunasegaran, M., Basiruddin, R., & Rizal, A. M. (2023). Detecting and preventing fraud in e- procurement of public sector: A review, synthesis, and opportunities for future research. International Journal of Academic Research in Business and Social Sciences, 13(1), 1444–1463. https://doi.org/10.6007/IJARBSS/v13-i1/15970
Hyatt, J., & Gruenglas, J. (2023). Ethical considerations in organizational conflict. In F. M. Morales-Rodríguez (Ed.), Conflict management: Organizational happiness, mindfulness, and coping strategies. Intech Open.
Ifejika, S. I. (2024). Fraud in public procurement: The dimensions in Nigeria’s reformed federal procurement system. Issues of State and Municipal Administration, 6, 83–109.
Igwe, N. N., Ude, A. O., & Chukwu, C. U. (2021). Public procurement, transparency and accountability in Nigeria: Dissecting the benefits and challenges to anti-corruption war. International Journal of Economics, Commerce and Management, 9(1), 306–323.
Isah, I. (2025). An overview of the legal framework for public-private partnerships in Nigeria. Social Science Research Network. https://dx.doi.org/10.2139/ssrn.5159888 .
Jejeniwa, T. O., Mhlongo, N. Z., & Jejeniwa, T. O. (2024). The role of ethical practices in accounting: A review of corporate governance and compliance trends. Finance & Accounting Research Journal, 6(4), 707–720. https://doi.org/10.51594/farj.v6i4.1070
Johnson, B. (2019). Do criminal laws deter crime? Deterrence theory in criminal justice policy: A primer. MN House Research. https://www.house.mn.gov/hrd/pubs/deterrence.pdf
Kalevor, W. M., Reindorf, K. K., & Maclean, B. B. (2024). Effective internal control systems and financial risk management: Evidence from public universities in Ghana. Journal of Business and Management, 26(2), 24–26. https://doi.org/10.9790/487X-2602072436
Kyambade, M., & Namatovu, A. (2025). The impact of ethical leadership and code of ethics on employee integrity, mediated by job satisfaction in Uganda’s public sector. International Journal of Public Leadership, 21(1), 72–89. https://doi.org/10.1108/IJPL-10-2024-0110
Labib, K., Evans, N., Roje, R., Kavouras, P., Reyes Elizondo, A., Kaltenbrunner, W., Buljan, I., Ravn, T., Widdershoven, G., & Bouter, L. (2022). Education and training policies for research integrity: Insights from a focus group study. Science and Public Policy, 49(2), 246–266. https://doi.org/10.1093/scipol/scab077
Lazarus, S., Hughes, M., Button, M., & Garba, K. H. (2025). Fraud as legitimate retribution for colonial injustice: neutralization techniques in interviews with police and online romance fraud offenders. Deviant Behavior. Advance online publication. https://doi.org/10.1080/01639625.2024.2446328
Mabior, M. M., & Mabior, M. M. (2024). Role of forensic investigations in reduction of financial fraud among commercial banks in South Sudan International Journal of Finance and Accounting, 3(1), 1–14. https://doi.org/10.37284/ijfa.3.1.1645
Mohammed, J., & Muslim, O. (2025). Appraising the effectiveness of the Economic and Financial Crimes Commission (EFCC) in combating corruption and economic crimes in Nigeria with gender perspective. Fountain University Law Journal, 2(3), 62–76. https://doi.org/10.53704/d7fjre60
Muhammed, A. O., Muhammed, A. A., Yakubu, H. A., Suleiman, A., & Adam, A. (2022). Assessment of factors affecting contractors tendering success for construction projects in North-Central Nigeria. International Journal of Real Estate Studies, 16(1), 87–99. https://doi.org/10.11113/intrest.v16n1.155
Jajere, U. U., Ngereboa, A. T., & Adebisi, J. F. (2025). Effect of organizational stimulus and capacity on financial fraud in Nigeria’s federal ministry of finance, budget & national planning and economic development. Global Scientific and Academic Research Journal of Multidisciplinary Studies, 4(2), 22–31.
Njoku, C. C., Nwaogwugwu, G. I., & Karim, A. (2025). Impact of unethical behaviors on development in Sub-Saharan Africa. Journal of African Community and Development, 1(1), 103–125.
Ojo-Agbodu, A., Abiola, J., & Ndubusi, E. I. (2022). Effect of forensic accounting on fraud detection and prevention in selected quoted deposit money banks in Nigeria. Fuoye Journal of Finance and Contemporary Issues, 3(2), 36–48.
Oladimeji, O., & Haddad, A. N. (2025). Corruption and factors influencing the viability of micro, small and medium scale construction firms (MSMCFS). Journal of Financial Management of Property and Construction. Advance online publication. https://doi.org/10.1108/JFMPC-10-2023-0073
Olujinmi, D., (2023) Return on equity: Most profitable companies in Nigeria as of September 2023. Nairametrics. https://nairametrics.com/2023/11/14/return-on-equity-most-profitable- companies-innigeria-as-of-september-2023
Omata, V. O., Gathoni, B., & Musumba, G. (2025). The role of fraud opportunities in procurement irregularities at public national referral hospitals in Nairobi County, Kenya. International Journal of Research and Innovation in Social Science, 8(12), 3708–3718.
Onowu, J. U., & Oludi, S. A. (2024). Computerized accounting system and fraud prevention in federal public sector organizations in rivers state, Nigeria. BW Academic Journal, 9(1), 22–22.
Osifo, E. O. (2024). Integrating compliance and cost control in public infrastructure and affordable housing construction contract management. International Journal of Engineering Technology Research & Management, 8(12), 439–455.
Paramole, I. B. (2025). The impact of forensic accounting on mitigating tax fraud in Nigeria: An Analysis of current trends and organisational implications. Jurnal Ekonomi Akuntansi Manajemen Agribisnis, 3(1), 41–60. https://doi.org/10.58222/jurekma.v3i1.398
Polowczyk, P. Ł. (2017). Organizational ethical integrity: Good and bad illusions. Palgrave Communications, 3(1), Article e46. https://doi.org/10.1057/s41599-017-0044-x
Priyadi, A., Hanifah, I. A., & Muchlish, M. (2022). The effect of whistleblowing system toward fraud detection with forensic audit and investigative audit as mediating variable. Devotion Journal of Community Service, 3(4), 336–346. https://doi.org/10.36418/dev.v3i4.121
Reddy, M. V. B., Jyoshna, C., Inampudi, P., & Rao, P. B. (2025). Navigating ethical leadership: Mitigating employee cynicism and enhancing organizational integrity in tech-driven sectors. In D. Burrell & C. Nguyen (Eds.), New horizons in leadership: Inclusive explorations in health, technology, and education (pp. 33–60). IGI Global Scientific Publishing.
Rutaba, Y. A. (2025). Transparency and emergency procurement: the moderating effect of bounded rationality “striving for ‘good enough’in lieu of optimal?” Management Matters, 22(1), 63–79. https://doi.org/10.1108/MANM-07-2024-0042
Salawu, M. K., Oyewobi, I., & Adejumo, O. A. (2023). Internal control system, risk management practice and fraud prevention among selected state governments in Southwestern Nigeria. Zenodo. https://doi.org/10.5281/zenodo.10049652
Selvakumar, P. (2025). Ethical business culture and employee retention. In A. Y. Ige-Olaobaju, I. O. Ganiyu, S. O. Atiku, W. Sisulu, & O. M. Olarewaju (Eds.), Advances in ethical work climate and employee well-being (pp. 191–212). IGI Global Scientific Publishing.
Tikum, N. (2025). Corruption, conflict, and poverty in Africa. In E. Durojaye, G. Mirugi-Mukundi, J.-M. Iyi, & U. M. Assim (Eds.), Conflict and poverty in Africa: A research companion (pp. 345–371). Routledge.
Vuković, M., Milovanović, T., Teovanović, P., & Stojanovik, V. (2024). Evaluation of reliability and validity of the Serbian Aphasia Screening Test. PLOS ONE, 19(5), Article e0304565. https://doi.org/10.1371/journal.pone.0304565
Vutumu, A., Oshota, S. O., & Akinteye, A. S. (2025). Forensic accounting, internal control impact on Nigerian public sector fraud prevention: A descriptive analysis. Open Journal of Business and Management, 13(2), 781–808. https://doi.org/10.4236/ojbm.2025.132042
World Economic Forum. (2020, June 15). How governments can leverage policy and blockchain technology to stunt public corruption. https://www.weforum.org/stories/2020/06/governments-leverage-blockchain-public-procurement-corruption/
Yanuarisa, Y., Irianto, G., Djamhuri, A., & Rusydi, M. K. (2025). Exploring the internal audit of public procurement governance: A systematic literature review. Cogent Business & Management, 12(1), Article e2485411. https://doi.org/10.1080/23311975.2025.2485411
Ziorklui, J. E. K., Ampofo, F. O., Antwi, B. O., & Nyonyoh, N. (2024). Effectiveness of internal controls mechanisms in preventing and detecting fraud. Finance & Accounting Research Journal, 6(7), 1259–1274. https://doi.org/10.51594/farj.v6i7.1322
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