NAIROBI, Kenya — A Nairobi court has charged a man accused of impersonating Head of Public Service Felix Koskei in an alleged scheme to extort Sh10 million from a senior government engineer, as prosecutors secured strict bail conditions to safeguard ongoing investigations.
Seth Omosira Osumo on Tuesday pleaded not guilty before Milimani Anti-Corruption Court Senior Principal Magistrate C. A. Okore to three charges, including impersonating a public officer and bribery.
According to the prosecution, Osumo falsely presented himself as Felix Koskei — the Chief of Staff and Head of Public Service — during interactions with Engineer Kenneth Njuguna Mbogori, a Regional Director at the Kenya Rural Roads Authority (KeRRA).
The court heard that on January 14 and 15, 2026, within Nairobi County, Osumo allegedly demanded KSh10 million from the engineer, claiming the money would be used to “protect” his position at KeRRA.
Prosecutors further told the court that on January 14, Osumo, despite being a private citizen, solicited the bribe, and on January 15, he allegedly received Sh30,000 from the engineer as part of the scheme.
Osumo faces charges of personating a person employed in the public service, contrary to Section 105(b) of the Penal Code, and two counts of bribery under the Anti-Bribery Act.
Principal Prosecution Counsel Willy Momanyi urged the court to impose strict bond terms, citing the seriousness of the offence and the need to preserve evidence.
Man charged with impersonating Felix Koskei, DPP secures strict bail terms.A Nairobi court has today heard how a man allegedly impersonated Head of Public Service Felix Koskei to demand a Ksh10 million bribe from a senior government engineer.Mr. Seth Omosira Osumo pleaded
The prosecution sought orders compelling the accused to surrender his passport, provide a contact surety, and obtain court approval before travelling outside the court’s jurisdiction.
The State also requested 14 days to supply the defence with witness statements and documentary exhibits and opposed the release of two mobile phones recovered from the accused, saying they would be relied upon as exhibits.
Magistrate Okore agreed with the prosecution’s position on the confiscated devices, saying the explanation given justified their continued retention.
“I am satisfied with the explanations given by the prosecution counsel on the issues regarding confiscation of the mobile phones belonging to the accused person,” the magistrate ruled.
The court granted Osumo a bond of Sh1 million or an alternative cash bail of Sh300,000 and ordered him to surrender his passport and all travel documents pending the hearing and determination of the case.
The prosecution was directed to supply all evidence to the defence within two weeks.
The matter will be mentioned on February 2, 2026, to confirm compliance with pretrial directions and for further orders.
