In today’s globalised, fast-changing financial landscape, banking rests on uninterrupted trust and transparency. While reputable banks are often known for integrity, ethics and strong controls, modern banking’s complexity — technological risks and sophisticated financial misconduct — means routine audits alone are no longer sufficient. Forensic audits have become an integral element of sound, responsible banking practice, not just a tool for troubled institutions. Making forensic audits mandatory for all banks would significantly strengthen resilience, reputation and regulatory compliance.
What a forensic audit is — and how it differs: A forensic audit goes beyond verifying the accuracy of financial statements or compliance with accounting rules. Its purpose is to detect and document fraud, misappropriation, irregularities and the weaknesses that enable them. Forensic work examines digital transaction trails, system logs, internal-control design, suspicious behavioural patterns, and other documentary and electronic evidence — essentially telling the story behind the numbers. Importantly, it collects and preserves evidence that withstands legal scrutiny and supports enforcement or recovery actions.
Why good banks need forensic audits: Reinforcing trust and reputation. A single case of fraud can shatter a bank’s hard-won credibility. Regular forensic reviews signal transparency and accountability to customers, investors and regulators, strengthening confidence and protecting franchise value.
Early detection and prevention. Even robust internal controls can be circumvented or erode over time. Forensic audits are proactive: they uncover subtle or long-running schemes that routine audits may miss, enabling remediation before losses escalate.
Meeting evolving regulatory expectations. Global regulatory regimes are becoming more exacting. Forensic audits help banks demonstrate readiness for investigations, meet supervisory requirements and align with risk-based oversight frameworks.
Improving internal operations.: Beyond fraud detection, forensic reviews identify process weaknesses, control gaps and governance shortfalls. Remediation improves operational efficiency and service quality.
Attracting investor confidence. Modern investors demand not only returns but governance and transparency. Forensic assurance reinforces the message that depositor funds and capital are protected.
Core types and methods of forensic audit: Digital forensics. Examination of IT systems, transaction logs, access records, and data security controls.
Transactional analysis. Deep-dive analytics to identify abnormal patterns, layering, or concealment techniques.
Employee behaviour and controls testing. Focused inquiries into collusion, policy breaches or incentivized misconduct.
Integrated techniques. Use of advanced data analytics, machine learning, and specialist forensic laboratories to reconstruct events and preserve evidentiary chains.
Implementation challenges — and pragmatic solutions: Establishing an in-house forensic capability or contracting specialist teams requires upfront costs and skilled personnel. Common barriers include unfamiliarity with forensic methods and fear that audits imply institutional weakness. Practical mitigations include:
Educate senior management and boards on forensic audits as a governance-strengthening tool, not a punitive measure.
Invest in periodic training and cross-functional awareness programs for staff and control owners.
Leverage technology to make forensic procedures less intrusive and more scalable (automated monitoring, anomaly detection).
Adopt a phased approach: start with risk-based forensic reviews of high-risk units and evolve to periodic enterprise-wide cycles.
A strategic imperative, not a stigma: Forensic auditing should be seen as a hallmark of mature, forward-looking banks. In an era of increasingly sophisticated financial crime and rapid technological change, even well-managed banks cannot assume immunity. Institutionalising forensic audits under a risk-based supervisory regime will raise sector-wide standards, protect depositor interests and enhance systemic stability.
Policy recommendations: Regulators, including Bangladesh Bank, should require regular, risk-based forensic audits as part of supervisory frameworks, complemented by guidance on methodology, evidence preservation and the integration of forensic findings into remediation and enforcement pathways. Banks should combine internal capability-building with external specialist engagement, and align forensic cycles with broader risk-management and audit plans.
Forensic audits protect more than ledgers; they protect reputation, customer trust and the financial system’s integrity. Adopted as a routine, risk-based discipline, they transform detection into prevention, strengthen governance, and contribute to a safer, more trustworthy banking sector.
Dr. Md. Touhidul Alam Khan is Managing Director & CEO of NRBC Bank PLC and fellow cost & management accountant from ICMAB.
touhid1969@gmail.com
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