Directorate of Criminal Investigations (DCI) Director Amin Mohammed on Monday announced an expanded investigation into alleged misconduct involving Nairobi County officials, including Chief Officer Geoffrey Mosiria, who are accused of illegally dumping waste at Kenya Power offices in Nairobi.

Speaking while he appeared before the National Assembly Departmental Committee on Administration and Internal Security led by Narok West MP Gabriel Tongoyo, Amin revealed that the DCI was actively on the case and several Nairobi County officials had been arrested regarding the incident.

Amin announced that the DCI had extended an invitation to officials of the Nairobi County Government, among them Mosiria to appear before it to record statements. ''We shall expand the scope of our investigation and we are hoping to invite today Geoffrey Mosiria who is the Chief Officer for Environment, John Malawi (Director of Environment), Cylus Njoroge, Charles Kerich, Maurine Njeri and Nahashon Muguna,'' Amin stated.  Nairobi City County Chief Officer for Environment Geoffrey Mosiria during his exclusive interview with Kenyans.co.ke on January 2025 at Kenyans.co.ke offices.

Kenyans.co.ke ''On February 25 we were able to arrest the following persons: Augustine Otieno Osore(driver), Moses Gitari, and Alice Okari(machine operator).