Mompha’s ₦6bn Money Laundering Case: AML Compliance Lessons and Banking Sector Exposure

Court’s decision to strike out EFCC charges raises questions about financial intelligence, suspicious transaction reporting, banks’ due diligence obligations and the effectiveness of Nigeria’s anti-money laundering enforcement framework.

The discharge of social media personality Ismaila Mustapha, popularly known as Mompha, from the alleged ₦6 billion money laundering prosecution has brought renewed attention to the responsibilities of financial institutions in identifying, monitoring and reporting potentially suspicious financial transactions.

Although the Lagos State Special Offences Court struck out the eight-count charge brought by the Economic and Financial Crimes Commission (EFCC) yesterday, its decision was based on an abuse of judicial process and the existence of similar proceedings before the Federal High Court in Lagos.

The ruling did not determine the substantive merits of the money laundering allegations. Mompha and his company, Ismalob Global Investment Limited, had pleaded not guilty to the charges, which included conspiracy to launder proceeds of unlawful activities, retention of proceeds of criminal conduct, failure to disclose assets and possession of documents containing false pretences.

The EFCC had alleged that Mompha, alongside another individual, Ahmadu Mohammed, and his company, participated in financial transactions valued at approximately ₦5.999 billion in 2016.

The court’s decision therefore raises a broader financial-sector question: how effectively are banks and other financial institutions identifying suspicious transaction patterns, establishing the economic rationale for substantial account activity and ensuring that potentially suspicious transactions are escalated to the appropriate authorities?

The banking sector’s independent AML obligations

For banks, the case reinforces an important principle of anti-money laundering compliance: the responsibility to identify and report suspicious transactions exists independently of whether a customer is eventually convicted of a criminal offence.

Under the Money Laundering (Prevention and Prohibition) Act 2022 and the Central Bank of Nigeria’s AML/CFT/CPF regulatory framework, financial institutions are required to maintain effective customer due diligence, transaction monitoring, record-keeping and suspicious transaction reporting systems.

Banks are expected to understand their customers’ business activities, beneficial ownership structures, expected transaction volumes and sources of funds.

Where substantial transactions are inconsistent with a customer’s known occupation, declared business activities or established financial profile, institutions are expected to investigate the discrepancies and apply appropriate risk-based controls.

The obligation extends beyond account opening. Continuous monitoring is necessary to identify changes in transaction behaviour, unusual fund movements, complex transaction structures and activity that lacks an apparent legitimate economic purpose.

In practical terms, a bank cannot rely exclusively on the fact that a customer has passed its initial Know Your Customer checks. Customer risk profiles must be reviewed as new information and transaction patterns emerge.

Suspicious transaction reporting: where banks face regulatory exposure..

One of the most significant implications for financial institutions is the statutory obligation to report suspicious transactions to the Nigerian Financial Intelligence Unit (NFIU).

Section 7 of the Money Laundering (Prevention and Prohibition) Act 2022 establishes the reporting obligation for suspicious transactions, including transactions that may involve proceeds of unlawful activities.

The NFIU’s reporting guidance provides for financial institutions to conduct an internal examination when suspicion arises and submit the relevant suspicious transaction report within the prescribed timeframe.

Importantly, suspicious transaction reporting is not dependent on the completion of a criminal investigation or the filing of charges by the EFCC.

This distinction is critical. Banks are not expected to establish criminal guilt before reporting a suspicious transaction. Their responsibility is to identify reasonable grounds for suspicion, document their assessment and fulfil the applicable reporting requirements.

The NFIU receives and analyses these reports before disseminating financial intelligence to competent investigative, regulatory and law enforcement authorities.

For banks, failure to identify reportable activity, inadequate escalation procedures or delayed reporting can create regulatory and legal exposure even where the underlying customer is never convicted.

Source of funds, source of wealth and transaction monitoring

The alleged transactions in the Mompha case also highlight the importance of distinguishing between source of funds and source of wealth assessments.

Source of funds concerns the origin of the money involved in a particular transaction or business relationship. Source of wealth examines how a customer accumulated their overall wealth.

For higher-risk customers, especially those with substantial cross-border transactions, complex corporate structures or business activities involving significant cash flows, banks may need to obtain additional information to establish whether the financial activity is consistent with the customer’s declared profile.

This requires more than collecting identification documents and company registration certificates.

Banks need to establish whether the stated business exists, whether its financial capacity supports the transaction volumes being processed and whether the parties involved in fund transfers have identifiable commercial relationships.

Where a customer’s account activity shows substantial discrepancies with their declared business operations, enhanced due diligence and further investigation may be necessary.

Transaction monitoring systems must also be sufficiently sophisticated to identify patterns involving multiple accounts, rapid movement of funds, unusual third-party transfers and potentially suspicious cross-border transactions.

The challenge for compliance departments is to distinguish genuinely suspicious activity from legitimate high-value transactions while ensuring that alerts are investigated, documented and escalated appropriately.

Beneficial ownership and the risks of corporate account structures..

The involvement of Ismalob Global Investment Limited in the prosecution highlights another important AML/CFT concern: the use of corporate entities in financial transactions.

Corporate accounts can create additional layers of complexity when the individuals exercising effective control over a company are not immediately apparent from the account documentation.

Financial institutions must therefore establish and verify beneficial ownership, understand the company’s ownership and control structure, identify authorised signatories and determine the commercial purpose of its banking relationships.

The existence of a registered company does not, by itself, establish the legitimacy of funds passing through its accounts.

Banks must also examine whether corporate transactions are consistent with the company’s stated activities, financial capacity and expected business relationships.

Where ownership structures are unnecessarily complex or transactions lack a credible commercial explanation, the institution should apply appropriate risk-based scrutiny.

Sanctions exposure for banks and compliance officers

The case also draws attention to the potential consequences of AML/CFT control failures within financial institutions.

Under Nigeria’s AML/CFT legal and regulatory framework, banks can face supervisory and administrative sanctions for failures involving customer due diligence, transaction monitoring, suspicious transaction reporting, record retention and internal compliance controls.

Depending on the nature and seriousness of the breach, consequences may include regulatory fines, enforcement directives, restrictions on activities and other supervisory measures. Deliberate participation in money laundering or the wilful facilitation of unlawful transactions can also create criminal exposure for individuals and institutions where the relevant legal requirements are established.

Compliance officers, relationship managers, operations personnel and other employees with AML/CFT responsibilities must therefore understand their obligations and ensure that suspicious activity is not ignored, suppressed or improperly cleared.

The NFIU has specifically identified penalties for failures to meet statutory suspicious transaction reporting requirements. Under the relevant provisions of the Money Laundering Act, reporting failures can attract financial penalties and other legal consequences.

This makes the quality of internal escalation procedures, audit trails and compliance decision-making particularly important.

The implications of the court ruling for financial intelligence

The decision also raises an important distinction between financial intelligence and criminal prosecution.

A suspicious transaction report is an intelligence tool. It does not, on its own, prove that a customer committed money laundering.

Similarly, the termination of a prosecution on procedural grounds does not automatically invalidate financial intelligence previously generated or remove the independent compliance responsibilities of reporting institutions.

Banks must therefore avoid treating court outcomes as substitutes for their own risk assessments.

Where a customer has been associated with a criminal investigation, financial institutions should assess relevant information in accordance with applicable laws, regulatory guidance, contractual obligations and their internal risk frameworks.