Cherargei said police should now explain to Kenyans who is behind the abductions now that the service has distanced itself from the criminal acts.
"Now that the National Police Service has confirmed that they are not aware who is abducting Kenyans, then together with DCI should immediately tell Kenyans who is doing the abduction in the country," the senator said in a statement Wednesday.
Cherargei said the police must provide answers about the whereabouts of the abducted individuals and reveal who is behind it "unless the police are powerless against this vice of abduction".
The abduction of four young Kenyans these past days has sparked national debate with rising concern about the resurgent of a criminal enterprise targeting hapless citizens after police denied involvement.
Cherargei said having previously been a victim of state-sponsored abduction, he understands how the families of those missing feel.
"It is horrifying experience that no one should go through," he said.
Cherargei's statement comes in the wake of public outcry over the disappearance of three social media users and a yet to be identified fourth abductee reportedly picked up by unknown persons.
They names were given as Bill Mwangi, Peter Muteti and Bernard Kavuli.
Allegations linked the police to the abductions but the National Police Service vehemently refuted the claims.
In a statement on Thursday, Inspector General of Police Douglas Kanja said there is no police station in the country that is currently holding any of the persons reported to have been abducted.
“For avoidance of doubt, the National Police Service is not involved in any abduction, and there is no police station in the country that is holding the reported abductees,” he said.
Kanja urged Kenyans to refrain from sharing false information on social media, aimed at tarnishing the good name of the police.
"We therefore appeal to the public to refrain from spreading false, fabricated, malicious, distasteful, misinformed, and unverified information aimed at tarnishing the reputation and image of the National Police Service.”
There were claims that the abduction of the bloggers could be linked to their social media posts, some of which were deemed offensive to government leaders, including the President.
Kanja urged Kenyans to exercise their freedom of expression responsibly, saying "freedom not only comes with certain limitations but should at all times be exercised with utmost responsibility".
Cherargei had Wednesday issued similar advice and asked Kenyans to be more thoughtful and considerate in their approach in criticising the government.
He emphasised the importance of social media users being respectful in the discourse on national conversations.
"My advice to all Kenyans is that if you have to criticise government, which is your right, do it constructively, respectfully and decently," he stated.
"There is no need to personalise attacks, demonise or insult; don't make a point, make a difference."
With the police having absolved themselves from blame, the biggest question now remains - who is behind the well-orchestrated abductions?
Kanja appealed to the public to provide information that may help apprehend those involved even as CCTV footage emerged online showing faces of the alleged perpetrators and the registration plates of getaway vehicles.
