The action comes in the wake of rising cases of alleged police brutality over the past few months.
The senators will now conduct investigations into the conduct of police officers blamed for violent disruptions of demos, deaths and destruction in the last four months.
According to The Nation, lawmakers from both political sides agreed on the need for such investigations saying that the police used excessive force against protestors.
Senate Majority leader Moses Wetangula and Narok Senator Ledama ole Kina complained that the government had not yet launched investigations despite multiple deaths already reported.
“Governments are custodians of public morality and, on account of the deaths the country has witnessed, it should have moved to investigate the circumstances under which Kenyans lost their lives,” Wetang’ula lamented.
Some of the issues to be investigated are brutality against protesters, extra-judicial killings, circumstances under which police have been using live bullets to quell demos among others.
On Thursday, families of Kenyans the opposition claims were killed by the police during Nasa leader Raila Odinga’s return from the United States started collecting bodies of their loved ones from the City Mortuary for burial.
The leaders condemned what they described as police brutality on innocent Kenyans and asked acting Interior Cabinet Secretary Fred Matiang’i and Inspector-General of Police Joseph Boinnet to take responsibility.
On Wednesday Assistant Police Inspector General Charles Owino and senator Ledama Ole Kina clashed on NTV's Sidebar over the alleged police brutality.
The verbal clash between the two forced NTV to discontinue transmission in the heated debate that was hosted by Larry Madowo.