January 15, 2026 l By Stephen — Dalena Reporters
LAGOS, Nigeria — The Nigeria Police Force has detained a whistleblower who publicly accused Alpha-Beta Consulting Limited a private firm widely reported to be linked to President Bola Ahmed Tinubu of corruption and systematic tax evasion, according to family sources and local media reports. The whistleblower, Comrade Segun Oluwasanmi, was arrested on Wednesday at the State Intelligence Department (SID) Command Headquarters in Ikeja, Lagos, and is expected to be arraigned in court on Thursday on charges the authorities say relate to alleged “cyberbullying” against the company.
Oluwasanmi’s detention followed a series of public petitions and allegations he lodged against Alpha-Beta Consulting, which has been contracted by the Lagos State Government to collect tax and revenue. In his complaints to the police, the Independent Corrupt Practices and Other Related Offences Commission (ICPC) and the Economic and Financial Crimes Commission (EFCC), and through civil society groups, he alleged that the company engaged in salary division schemes to reduce taxable income and under-remitted statutory taxes on employee wages.
A relative of Oluwasanmi told Sahara Reporters that the whistleblower was initially permitted to contact his family and lawyer shortly before his detention, which occurred just before 7 p.m. on Wednesday. Police have reportedly charged him with cyberbullying related to his online and public postings about Alpha-Beta, but family and supporters insist the move is retaliation for exposing alleged corruption rather than the stated offence.
In his petitions, Oluwasanmi claimed that internal company memos — including a 2024 correspondence signed by the company’s Head of Human Capital Management — confirm that an audit by the Lagos State Internal Revenue Service (LIRS) uncovered discrepancies in tax remittance practices. He also detailed allegations of irregularities in procurement and human resources, including purported inflated contracts and forged signatures within the firm’s management.
Supporters of Oluwasanmi say that his whistleblowing initially earned him commendations within Alpha-Beta, but his relationship with the firm deteriorated sharply after he began calling out suspected fraud and alleged forgery by senior employees. His dramatic resignation in late 2025 followed what he described as increasingly hostile treatment from the firm’s management.
Alpha-Beta Consulting, established as a key revenue collection partner for Lagos State, has long been subject to scrutiny and controversy, including public allegations of under-remittance and corporate mismanagement dating back years. Previous lawsuits and petitions have accused the company and associated political figures of fraudulent practices claims that have not resulted in major convictions but have surfaced repeatedly in civil litigation and public debate.
The arrest has sparked concern among civil rights activists and whistleblower protection advocates, who argue that using cyberbullying charges to detain a government critic could discourage legitimate reporting of corporate or public sector corruption. Observers warn that such actions may undermine public confidence in anti-corruption initiatives if individuals exposing misconduct are themselves penalised rather than their allegations transparently investigated.
As the case proceeds to arraignment, interest groups and rights organisations are expected to monitor developments closely, calling for due process, transparency and protection for individuals who come forward with evidence of wrongdoing.