Nairobi’s City Hall has never been short of political intrigue, but Geoffrey Mosiria’s departure has turned an administrative reshuffle into a potentially explosive contest over power, public money and the approaching battle for the capital’s governorship.
The former chief officer, dismissed by Governor Johnson Sakaja on Wednesday, October 21, has emerged with a familiar but politically potent claim: that the system he served steadily stripped him of the power to do his job. His account is a scathing indictment of the county administration, though its most serious allegations remain unproven.
Mosiria says his troubles began in December 2023, when his authority as an accounting officer in the health department was transferred to junior officers. He further claims that the department’s budget was slashed from Sh1.2 billion to Sh100 million, severely limiting his ability to execute his mandate.
In an accusation that could invite uncomfortable scrutiny if substantiated, he alleges that his refusal to facilitate direct procurement arrangements favouring individuals close to the governor and county contractors contributed to his subsequent marginalisation.
These are grave claims, not established findings of wrongdoing. Yet they raise questions that Nairobi residents have every reason to ask: who controls the county’s purse, how are procurement decisions made, and what happens when a public official disputes the arrangements operating within government?
The story did not end in the health department. Mosiria says he was transferred to the Environment docket, where his responsibilities were diminished, before being moved to public participation, citizen engagement and customer service. He describes enduring public criticism, hostility within official WhatsApp groups and a court case over alleged contempt of court.
Rather than retreat into the bureaucratic shadows, he says, he chose to continue working in the streets, engaging residents and participating in county operations.
“I chose to go to the ground and continue working for Nairobi residents rather than sit in the office doing nothing,” he said.
There is political theatre in this account, certainly. But there is also an institutional question that cannot be dismissed as personal grievance: whether county officials possess the practical independence and resources necessary to discharge their responsibilities, and whether administrative transfers are being used to improve service delivery or settle internal disputes.
The timing makes the confrontation harder to ignore. Mosiria recently announced his intention to challenge Sakaja for the Nairobi governorship in the 2027 General Election. His removal now places him outside the county executive structure and gives his political ambitions a fresh narrative: that of a former insider who claims to have encountered resistance while attempting to serve the public.
The county’s reshuffle notice, signed by County Secretary Machel Waikenda, named Zipporah Njeri Mwangi as acting chief officer for public participation, citizen engagement and customer service. It cited provisions of the County Governments Act, 2012, but did not publicly establish that Mosiria’s political ambitions were the reason for his removal.
That distinction matters. The proximity between his gubernatorial declaration and dismissal may fuel suspicions of political retaliation, but timing alone cannot prove motive.
Mosiria has cast himself as a man interested in repairing institutions rather than fighting individuals. “My desire has never been to fight anyone; it has always been to fix the systems and serve the people of Nairobi,” he said.
It is an appealing campaign message. Whether it withstands the scrutiny of an election campaign remains to be seen.
For now, Nairobi needs more than competing accusations and political declarations. It needs documentary answers on budgets, procurement and administrative decisions, alongside transparent explanations from county leadership.
If Mosiria’s allegations can be substantiated, they deserve serious investigation. If they cannot, the public deserves to know that, too.
At City Hall, the immediate question is who holds the office. The larger one is whether the institutions inside it serve Nairobi’s residents or the interests of those who wield power.