Saleh Mamman: FCT High Court Hears EFCC Charge Dismissal for Double Jeopardy

• Former Minister of Power, Saleh Mamman, who was convicted and sentenced to 75 years imprisonment in May 2026, has applied to the FCT High Court to dismiss a nine-count charge.
• The Economic and Financial Crimes Commission (EFCC) brought the charges against Mamman.
• Mamman argues he was previously tried and convicted by the Federal High Court for offenses from the same transaction.
• His application invokes the legal principle of double jeopardy, specifically *autrefois convict*.
• The case will test the judicial interpretation of the 'same transaction rule' in Nigerian criminal law.

The FCT High Court's forthcoming decision on Saleh Mamman's application carries substantial weight for the future interpretation and application of the double jeopardy principle, particularly autrefois convict, within Nigeria's criminal justice system.

Saleh Mamman, a former Minister of Power in Nigeria who was convicted and sentenced to 75 years imprisonment for fraud and money laundering in May 2026, has formally requested the High Court of the Federal Capital Territory (FCT) to set aside a nine-count criminal charge brought against him. The Economic and Financial Crimes Commission (EFCC) is the prosecuting body behind these charges. Mamman's legal team presented an application arguing for the dismissal of the indictment.

The core of the former minister's argument is that he has already faced legal proceedings and received a conviction from the Federal High Court for offenses. Crucially, he contends that these prior offenses stemmed from the identical set of circumstances or the "same transaction" as the current nine-count charge. This assertion forms the basis of his plea for the FCT High Court to halt the ongoing prosecution.

The legal foundation of Mamman's application rests on the fundamental principle of double jeopardy, specifically the doctrine of *autrefois convict* as recognized in Nigerian law. This doctrine serves as a safeguard, preventing an individual from being prosecuted or punished a second time for the same criminal offense after they have already been validly convicted for it. It is a cornerstone of fair trial rights, ensuring finality in criminal proceedings.

Central to the application of *autrefois convict* is the interpretation of the "same transaction rule" in criminal law. This rule posits that if a series of criminal acts are so closely linked in time, place, and purpose as to form a single, continuous transaction, then a conviction or acquittal for one offense within that transaction may preclude subsequent prosecution for other offenses arising from the very same transaction. The court's determination of whether the current nine-count charge and the previous conviction indeed arose from the "same transaction" will be pivotal in this case.

The FCT High Court's forthcoming decision on Saleh Mamman's application carries substantial weight for the future interpretation and application of the double jeopardy principle, particularly *autrefois convict*, within Nigeria's criminal justice system. This ruling will provide critical insight into how judicial bodies define and apply the "same transaction" rule, especially in high-profile cases involving allegations of financial misconduct prosecuted by the EFCC.

A definitive judicial interpretation of what constitutes a "same transaction" could significantly influence how prosecuting agencies like the EFCC structure their charges and how defense lawyers formulate strategies for clients facing multiple indictments stemming from related events. The outcome of this case has the potential to clarify the boundaries of prosecutorial powers and reinforce the constitutional protections against being tried twice for the same alleged wrongdoing, thereby shaping future criminal proceedings in Nigeria.

Lawyers should closely monitor the FCT High Court's ruling on Saleh Mamman's application, as it will provide critical insight into the judicial interpretation and application of the double jeopardy principle (autrefois convict) and the 'same transaction' rule in Nigerian criminal proceedings, particularly in high-profile EFCC cases. This precedent could significantly influence defense strategies for clients facing multiple charges arising from related events.

Source: Original reporting via TheNigeriaLawyer