Former Nigerian Minister of Petroleum Resources, Diezani Alison-Madueke, came under intense scrutiny this week at Southwark Crown Court in London, where she is facing a high-profile corruption trial that has attracted global attention.
The courtroom session on Monday featured a forceful cross-examination by lead prosecutor Alexandra Healy KC, who accused the former minister of misleading the jury and attempting to obscure the full extent of alleged financial misconduct during her time in office.
Healy KC, addressing the witness directly, challenged Alison-Madueke’s credibility, alleging she was “lying to this jury” as she sought to distance herself from luxury purchases and questioned financial transactions linked to her associates.
The prosecution described the case as involving a structured network of influence within Nigeria’s oil industry, arguing that the former minister played a central role in what it termed a coordinated system of bribery and contract manipulation.
During her testimony, Alison-Madueke denied knowledge of several high-value luxury purchases allegedly made on her behalf, insisting she was not aware of the full extent of spending attributed to her circle of associates. Prosecutors, however, countered her claims with documentary and witness evidence.
Healy KC rejected her explanations in strong terms, stating: “You are not telling the truth. You knew exactly who was paying, and you knew exactly why.”
The defence also revisited allegations that the former minister had been subjected to blackmail by oil industry figures, including businessman Kola Aluko. Alison-Madueke told the court she was pressured and intimidated during her tenure, portraying herself as a victim of coercion.
However, prosecutors dismissed that narrative, arguing that evidence instead pointed to a powerful official who exercised significant control over decision-making and maintained close relationships with the same individuals she now accuses of wrongdoing.
A key moment in the hearing came when the court examined a transcript allegedly recovered from her mobile phone. The message, dated 2014, reportedly contained a warning to associates: “I will be happy to escort all of you to jail along with myself… If you don’t do what I say, we all go down together.”
Prosecutors argued that the communication undermined her defence, presenting it as evidence of a commanding figure operating within a tightly controlled network of political and financial interests.
The trial also revisited the so-called “Harrods allegations,” in which Alison-Madueke denied knowledge of luxury goods reportedly purchased in her name. She told the court she had never seen many of the items in question.
This claim was contradicted by testimony from Harrods staff, who described her as a frequent client who used personal shopping services and had established preferences for high-end products.
Further questions were raised about her assertion that she reimbursed funds allegedly spent on her behalf. Prosecutors dismissed this explanation as unsubstantiated, arguing it was not supported by financial records presented in court.
The Economic and Financial Crimes Commission (EFCC) was also referenced during proceedings, particularly regarding her claim that key documents were lost during a raid on her property in Nigeria. Prosecutors said there was no credible evidence supporting the disappearance of such records.
The prosecution further presented communications suggesting that some oil industry actors referred to themselves as her “loyal soldiers,” which they argued reflected the level of influence she allegedly exerted over contract awards during her time in office.
According to prosecutors, the evidence paints a picture of a system in which access to oil contracts and regulatory influence was allegedly exchanged for personal luxury benefits, including overseas properties, designer goods, and expensive services.
Healy KC told the court that Alison-Madueke was not simply a minister carrying out administrative duties, but a central figure in a wider network where public authority and private gain were closely intertwined.
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