The Directorate of Criminal Investigations has said politicians arrested over hate speech and incitement will be taken to court later Tuesday.
DCI Director Ndegwa Muhoro said six lawmakers have recorded statements.
Speaking at a press conference at the National Cohesion and Integration Commission (NCIC) headquarters in Nairobi, Mr Muhoro said county DCI officers have been directed to be on the lookout for hate-mongers.
He was hosted by NCIC chairman Francis ole Kaparo, who said the agency had requested special investigators, prosecutors and courts to deal with hate speech cases.
Mr Kaparo blamed the rise in incidents of hate speech on the violent demonstrations witnessed in the past weeks.
On Monday, Police Inspector-General Joseph Boinnet ordered six Jubilee and Cord lawmakers to appear before the DCI to be questioned over their remarks.
Jubilee MPs directed to appear before the DCI were Moses Kuria (Gatundu South), Ferdinand Waititu (Kabete) and Kimani Ngunjiri (Bahati).
The Cord lawmakers were Junet Mohamed (Suna East), Timothy Bosire (Kitutu Masaba) and Kilifi Woman Representative Aisha Jumwa Katana.
There was drama on Tuesday as police arrested Mr Mohamed outside Nation Centre in Nairobi, moments after he left a live interview with NTV.
Cord claimed that two of its leaders — Machakos Senator Johnson Muthama and Mr Bosire — had been under “house arrest” since 11pm on Monday.
Mr Muthama was later escorted to DCI headquarters.