A British jury took 46 hours to decide what Olatimbo Ayinde has been saying for nine years: she isn't guilty.

On July 17, 2026, Southwark Crown Court in London delivered unanimous verdicts of not guilty for Ayinde, former Nigerian Petroleum Minister Diezani Alison-Madueke, and co-defendant Doye Agama. The verdict brought the curtain down on one of the UK's most closely watched corruption trials.

Ayinde, a Nigerian energy executive, was arrested in 2017 by the UK's National Crime Agency (NCA). Prosecutors hit her with two counts under the UK Bribery Act 2010. The first alleged she gave improper benefits to Alison-Madueke. The second accused her of making a $5 million payment connected to Dr. Emmanuel Ibe Kachikwu, who was then Group Managing Director of the Nigerian National Petroleum Corporation (NNPC).

The prosecution painted the payments as part of a wider corruption web inside Nigeria's oil sector. But Ayinde's defence told a completely different story.

She told the court she wasn't a bribe-giver — she was a whistleblower. According to her testimony, Dumebi Kachikwu, brother of the former NNPC chief, approached her for a bribe. Instead of paying up quietly, she reported the approach to Nigeria's Department of State Services (DSS). Security officials, she said, told her to "play along" while they investigated.

That claim got a major boost in March 2026 when Nigeria's Attorney General sent an official DSS communication to her lawyers confirming she'd reported the matter years earlier.

British prosecutors fought hard against that narrative. They argued Ayinde only became an informant after making the payment and called supporting testimony from Nigerian officials unreliable. But her defence insisted she cooperated with investigators from the start.

An investigator from Nigeria's Economic and Financial Crimes Commission (EFCC) even travelled to London to testify that Ayinde had supplied critical information that helped anti-corruption investigations.

In one of the trial's most powerful moments, defence counsel told the jury: "Miss Ayinde's plan was to help law enforcement, and now she's there in the dock."

The jury bought it.

Ayinde's connection to Alison-Madueke came through her relationship with Haruna Momoh, a former Managing Director of the Pipelines and Products Marketing Company (PPMC). Momoh was undergoing cancer treatment in the UK and used Ayinde's credit card for medical expenses. Prosecutors said some of those transactions were benefits for Alison-Madueke. Ayinde's team said the transactions were misinterpreted and hadn't anything to do with bribery.

The trial lasted six months. The jury deliberated for more than 46 hours. In the end, they cleared everyone.

For Ayinde, the verdict is more than a legal win. It ends nearly a decade of investigation, prosecution, and public scrutiny. She maintained throughout that she acted in support of law enforcement, not against it. A British jury finally agreed.

Key Facts

  • Olatimbo Ayinde was arrested in 2017 by the UK National Crime Agency
  • She faced two counts of bribery under the UK Bribery Act 2010
  • One count involved a $5 million payment linked to Dr. Emmanuel Ibe Kachikwu
  • The trial at Southwark Crown Court lasted six months
  • Jury deliberations took more than 46 hours
  • Verdict delivered on July 17, 2026: not guilty on all counts
  • Co-defendants Diezani Alison-Madueke and Doye Agama also acquitted