FBI Court Declaration Confirms Tinubu Was Subject of Criminal Investigation in US Drug Case

FBI Court Declaration Confirms Tinubu Was Subject of Criminal Investigation in US Drug Case

A recent FBI court filing has reignited controversy over a decades-old U.S. investigation involving Nigerian President Bola Ahmed Tinubu, with a U.S.-based firm arguing that the declaration confirms he was a subject of a criminal investigation connected to a Chicago-area drug-trafficking case.

The development comes as a long-running Freedom of Information Act (FOIA) battle over FBI and other U.S. government records relating to the early-1990s investigation enters another stage.

The records concern an investigation into a Chicago heroin-trafficking organization and allegations involving several individuals, including Tinubu.

However, it is important to distinguish between being investigated and being convicted of a crime. The available court record does not establish that Tinubu was convicted of drug trafficking, and reports indicate that he was not criminally charged in the matter.

What the New FBI Declaration Says

According to a statement released by Washington-based firm Von Batten-Montague-York, the FBI submitted a sworn declaration to a U.S. federal court on August 28, 2026.

The firm says the declaration refers to an earlier court determination that a criminal investigation involving Tinubu had already been officially acknowledged.

The development is connected to a FOIA lawsuit brought by transparency activist Aaron Greenspan, who has been seeking access to historical records held by U.S. law-enforcement agencies.

The FBI has sought to keep portions of the records confidential, arguing that some information is protected under exemptions in U.S. freedom-of-information law.

The Case Goes Back to the Early 1990s

The controversy stems from a U.S. investigation into a Chicago-area heroin distribution organization that operated during the early 1990s.

Greenspan filed FOIA requests seeking records relating to several people he alleged were connected to the investigation, including Tinubu and other individuals.

The requests were directed at multiple U.S. government agencies, including the FBI, Drug Enforcement Administration (DEA), Internal Revenue Service and other Justice Department components.

Several agencies initially issued what is known as a Glomar response.

What Is a Glomar Response?

A Glomar response is used by U.S. government agencies when they refuse to confirm or deny whether particular records exist.

The approach is sometimes used when even acknowledging that records exist could reveal information protected under FOIA exemptions.

In this case, however, the legal battle eventually challenged whether the FBI and DEA could continue using that response regarding Tinubu.

What Did the U.S. Court Rule?

In April 2025, U.S. District Judge Beryl Howell ruled that the FBI and DEA's Glomar responses concerning Tinubu were improper.

The court found that the government had already publicly acknowledged information sufficient to establish that Tinubu had been the subject of a criminal investigation.

The court's opinion described an affidavit that discussed a criminal investigation into money laundering involving proceeds from a Chicago heroin-distribution organization.

The affidavit stated that the investigation included information from special agents of the IRS, DEA and FBI.

The court concluded that the information constituted an official acknowledgment that Tinubu was one subject of a criminal investigation involving, among other agencies, the FBI and DEA.

The Court's Finding Does Not Mean a Conviction

The distinction is important.

The 2025 court ruling addressed whether U.S. agencies could refuse to confirm or deny the existence of investigative records.

It was not a criminal trial determining whether Tinubu committed drug-trafficking offenses.

The ruling therefore should not be interpreted as a U.S. court finding that Tinubu was guilty of drug trafficking.

Available reporting also notes that Tinubu was not criminally charged in connection with the matter and has previously characterized the issue as involving a civil forfeiture or settlement.

Why the FBI Is Still Fighting the Release of Records

Although the court ruled that the FBI and DEA could not simply rely on a Glomar response to conceal the existence of the investigation, the question of which records should actually be released remains separate.

The FBI has argued that some information contained in the requested records should remain protected.

In August 2026, the bureau asked the federal court for permission to submit a confidential declaration explaining why some of the information should not be publicly disclosed.

The request was made under an ex parte, in camera procedure, meaning the FBI's detailed explanation would be presented privately to the judge rather than placed in the public record.

What Does “Ex Parte, In Camera” Mean?

The legal terminology can sound complicated.

Ex parte generally means that a submission is made to the judge without the opposing party participating in that particular presentation.

In camera means the judge reviews the material privately.

The procedure can be used when sensitive law-enforcement information, confidential sources, investigative methods or other protected information is involved.

The FBI's request therefore does not necessarily mean that all of the records will be released.

Instead, it allows the judge to examine the government's arguments and potentially sensitive material privately before deciding what can be disclosed publicly.

The FBI Says Some Information Is Sensitive

The FBI has invoked several FOIA exemptions in its effort to withhold or redact portions of the requested records.

According to reporting on the August filing, the bureau argued that releasing certain information could expose sensitive law-enforcement information, investigative techniques or other protected material.

The legal dispute is therefore no longer simply about whether an investigation existed.

It is increasingly about how much of the underlying investigative material can legally be released to the public.

Tinubu's Legal Team Also Challenges Release

President Tinubu has also entered the latest stage of the legal dispute.

His U.S. legal team filed a 16-page submission opposing efforts to release the records, arguing that disclosure could infringe on his privacy interests.

Reports say the filing was made before the U.S. District Court for the District of Columbia as part of the continuing FOIA litigation.

The intervention means that the dispute now involves not only government agencies and the FOIA requester, but also Tinubu's legal team.

The $460,000 Civil Forfeiture Issue

The broader controversy also relates to approximately $460,000 in funds connected to Tinubu that were forfeited to the U.S. government in the 1990s.

The forfeiture has become a major part of public discussion surrounding the case.

However, civil forfeiture proceedings should not automatically be described as a criminal conviction.

The legal proceedings surrounding the funds and the criminal investigation are related historically, but they involve different legal questions.

Why the Story Is Making Headlines Again

The case has attracted renewed attention because the FBI's latest declaration comes more than three decades after the underlying investigation.

The issue has also become politically sensitive in Nigeria, where Tinubu is currently president.

Supporters and critics have interpreted the latest court developments differently, particularly regarding what the eventual release of the records could reveal.

The legal process, however, remains the key source for determining what has actually been established.

What We Know So Far

Based on the available court records and recent reporting, several points can be distinguished:

1. A U.S. investigation existed.

The 2025 federal court ruling found that the government had officially acknowledged a criminal investigation involving Tinubu.

2. The investigation involved multiple U.S. law-enforcement agencies.

The court record refers to investigative work involving agencies including the FBI, DEA and IRS.

3. The investigation was connected to a Chicago-area heroin organization.

The court opinion describes the broader investigation as involving money laundering connected to proceeds from a heroin-distribution organization.

4. Tinubu was not convicted of drug trafficking in the case.

The existence of an investigation does not establish criminal guilt.

5. Some records remain withheld or disputed.

The FBI continues to argue that portions of the requested material are protected from public disclosure.

6. The court is still dealing with the release of records.

The latest filings concern what information can remain confidential and what must be disclosed.

What Could Happen Next?

The next major development will likely come from the U.S. District Court for the District of Columbia.

Judge Beryl Howell will have to consider the government's arguments for withholding or redacting records alongside the FOIA requester's demand for disclosure.

The court could ultimately order the release of additional documents, allow some information to remain protected, or require further review and redaction.

The final outcome could provide additional details about the historical investigation, although sensitive information may still remain sealed.

Why the Case Matters

The controversy highlights the power of U.S. freedom-of-information litigation to uncover historical government records, even when the underlying investigation dates back decades.

It also demonstrates the difference between three separate questions:

Was someone investigated?

Was someone charged?

Was someone convicted?

Those questions have different legal meanings and should not be treated as interchangeable.

In Tinubu's case, the court record supports the first question: the 2025 ruling found that the existence of a criminal investigation involving him had been officially acknowledged.

The available material does not establish the third question — a criminal conviction for drug trafficking.

Final Thoughts

The latest FBI declaration has brought renewed attention to a U.S. investigation dating back to the early 1990s.

The most significant legal development is not simply the existence of the FBI declaration, but the history behind it: a federal judge ruled in 2025 that the FBI and DEA could no longer use a Glomar response to refuse to confirm or deny the existence of records concerning a criminal investigation involving Tinubu.

The FBI is now fighting to keep some of the underlying material confidential, while Tinubu's legal team has separately opposed the release of the records.

As the court considers the competing arguments, the public may eventually learn more about the historical investigation.

For now, however, the facts should be reported carefully: the U.S. court record establishes that Tinubu was a subject of a criminal investigation, but that fact alone is not a finding of guilt or a criminal conviction.

The next court decisions could determine how much of the investigation's underlying records becomes public.