Olatimbo Ayinde: Nine Years of Allegations, Six Months of Trial, One Verdict: Not Guilty

Accused alongside former Nigerian Petroleum Minister Diezani Alison-Madueke in a sprawling international bribery case, Ayinde faced allegations that threatened to destroy a career built over nearly two decades in the oil and gas industry.

But on June 17, 2026, after years of investigations, court appearances and intense public scrutiny, a jury at Southwark Crown Court in London delivered a unanimous verdict that changed everything.

The verdict marked the dramatic end of a legal battle that began in 2017 when she was arrested by the United Kingdom’s National Crime Agency (NCA).

British prosecutors accused Ayinde of two counts of bribery under the UK Bribery Act 2010.
The first alleged that she provided improper benefits to Diezani Alison-Madueke.

The second accused her of making a $5 million payment linked to Dr. Emmanuel Ibe Kachikwu, who served as Group Managing Director of the Nigerian National Petroleum Corporation (NNPC) before later becoming Minister of State for Petroleum Resources.

The prosecution portrayed the payments as part of a broader scheme of corruption within Nigeria’s petroleum sector.
Ayinde consistently denied the allegations.

At the heart of Ayinde’s defence was a striking claim: she was not a participant in bribery, but a whistleblower assisting authorities.
She told the court that she had been approached by Dumebi Kachikwu, brother of the former NNPC chief, and was asked for a bribe. Rather than comply secretly, she reported the approach to Nigeria’s Department of State Services (DSS).

According to her testimony, security officials instructed her to “play along” while investigations were conducted.

That claim gained significant weight in March 2026 when Nigeria’s Attorney General transmitted an official DSS communication to her legal team confirming that she had indeed reported the matter to the agency years earlier.

British prosecutors fiercely challenged the explanation, arguing that Ayinde only became an informant after making the payment and dismissing supporting testimony from Nigerian officials as unreliable.

However, her defence team insisted she had acted in cooperation with investigators throughout.

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

In one of the trial’s defining 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 ultimately accepted her account.

Ayinde’s connection to Diezani Alison-Madueke emerged through her relationship with Haruna Momoh, a former Managing Director of the Pipelines and Products Marketing Company (PPMC).

At the time, Momoh was undergoing cancer treatment in the United Kingdom and had access to Ayinde’s credit card to cover expenses during his medical stay.

Investigators later linked some of those transactions to benefits allegedly received by Alison-Madueke.
Prosecutors argued the payments formed part of a corrupt arrangement.
Ayinde’s legal team countered that the transactions had been misinterpreted and were unrelated to any bribery scheme.

After hearing months of evidence, the jury agreed.

The trial, which lasted six months and involved more than 46 hours of jury deliberations, ended with a stunning outcome.

Ayinde was cleared of every allegation against her.

Diezani Alison-Madueke was also acquitted of all six charges she faced, while Doye Agama, another defendant in the case, was similarly found not guilty.

For Ayinde, the verdict represented far more than a legal victory.

It brought an end to nearly nine years of investigation, prosecution and public scrutiny, restoring the reputation of a businesswoman who maintained throughout the proceedings that she had acted in support of law enforcement, not in defiance of it.

After years in the dock, a British jury ultimately accepted her defence and delivered the verdict she had fought almost a decade to hear: Not Guilty.