Gatundu South MP Moses Kuria was arrested Friday morning for allegedly assaulting a woman at Royal Media studios on December 8, 2019.
A woman named Joyce Wanja made the claim and said she wants help from Director of Criminal Investigations George Kinoti and Director of Public Prosecutions Noordin Haji.
Mr Kuria was taken to Kilimani Police Station, said Kilimani Sub-County Police Commander Lucas Ogara.
County Commander Philip Ndolo said he would be taken to court later on Friday.
In a past interview with Wanjiku TV, Ms Wanja claimed Mr Kuria beat her up during a show in which they discussed the Building Bridges Initiative.