Residents of Gatamaiyu village in the lake side town were left in anger following the incident as police moved in to arrest the suspect.
Trouble started after the man who had been married for two months was told to bathe his step son as the mother prepared lunch.
According to an elder Patrick Njoroge, the suspect warned his son not to relieve himself in the basin and when the minor repeatedly did the same he took up a knife and cut part of his genitals.
Njoroge said that as punishment the suspect bit several parts of the minor’s body before he was rescued by the mother who alerted neighbors.
“This is the most inhuman act we have seen in this village in years and the residents wanted to lynch the suspect but police arrived in time and took him to the station,” he said.
He termed the suspect as that of sound mind adding that he had never had any confrontations with the villagers.
A child rights activist Esther Njeri condemned the act terming it as inhuman and called for stiffer penalties for the suspect.
Njeri who is a former nominated MCA said the minor was taken to the Naivasha sub-county hospital where he is responding well to treatment.
“Stern action must be taken against the suspect and we will follow the matter to its logical conclusion so that the innocent minor can get justice,” she said.
Njeri who has for years been on the fore front in advocating for children rights at the same time said cases of child abuse in the area were on the decline with few being reported.
She said concerted efforts by all stakeholders including police had helped in reducing the numbers especially in villages where the vice was common.
“We have conducted public awareness and advocacy, passed several laws in the previous assembly where I served and the results are positive in all the villages where such incidences were common,” she said.
-Anthony Gitonga