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This paper aims to present a bibliometric analysis of publications from the Scopus database on fraud detection studies.

The current research used Microsoft Excel to conduct the frequency analysis, VOSviewer for data visualisation and Harzing’s Publish or Perish for citation metrics and analysis.

In alignment with these research results, the publications on fraud detection studies have been consistently increasing since 2005. India was rated first as the most active country in fraud detection research. Tongji University from China was the most active institution that published significant publications related to fraud detection research. A total of 160 scholars from 89 various countries and 160 different institutions published several fraud detections studies with multi-authors’ participation in different languages.

To the best of the authors knowledge, this study is the first study to review fraud detections publications in the Scopus science database.

The paper aims to investigate Task Performance Fraud Risk Assessment (TPFRA) and Knowledge Requirement (KR) of the forensic accountant and auditor on Fraud-Related Problem Representation (FRPR) in the Nigerian public sector.

The study used cross-sectional design and 400 survey questionnaires. The respondents are real professional people (auditors and forensic accountants in the Nigerian public sector) as true representatives to enhance the generalization of the outcomes. A total of 36 indicator items was measured on five-point Likert scale from 1 (strongly disagree) to 5 (strongly agree). Partial Least Square – Structural Equation Modelling 2.0 3M and IBM SPSS Statistics 20.0 were used as the primary statistical analysis tool for the study.

The results of the present study confirm the positive relationship between KR on TPFRA, positive relationship of KR on FRPR and positive relationship of FRPR and TPFRA. Specifically, the results revealed that FRPR positively mediates the relationship between TPFRA and KR (forensic accountant and auditor) in the areas of fraud prevention, detection and response.

The first limitation deals with fraud and corrupt practices in a developing country, Nigeria. Examining the mediating influence of FRPR on KR and TPFRA in the public sector could be considered as sensitive and raise the issue of bias. The second limitation is the adoption of cross-sectional design in which data are collected at one point in time. Researchers are encouraged to use a longitudinal design to explore interactions between KR, FRPR and TPFRA.

This empirical study has revealed the value of KR (forensic accountant and auditor) as a significant capability requirement in the workplace. In addition, it shows the importance of FRPR as an important mental state in decision-making or judgment and also the significance of FRPR as an important mediating variable on KR and TPFRA.

No nation is immune to fraud, and loss due to fraud in the public sector is enormous and costly; the result of this research will improve the KR of auditors and forensic accountants in the areas of fraud detection, prevention and response. It will also contribute to the regulatory, legal and institutional frameworks in accounting and auditing systems in Nigeria and portend an increase in demand for forensic accountants.