The revelations by Nyakang'o come barely a week after she criticized the county governments for the late submission of financial and non-financial reports.
The governor's impeachment ruling is set to be delivered on Friday, March 14.
The civilian exclusively spoke to Kenyans.co.ke on how the patrol base was set up.
She was found dead in her Nairobi apartment on Friday, March 7.
Raila made the demands during a funeral service in Kiambu.
The scheme has faced opposition from various quarters, with some Kenyans calling for a return to NHIF.
Kenyan households spend an average of Ksh4,000 on electricity bills every month.
The group is suspected to be part of a wider criminal network spanning the East African region.
This comes amid a renewed push from President Ruto to encourage more savings.
Despite the backlash, the government of Kenya is yet to clarify the allegations.