Wiper Party Leader Kalonzo Musyoka has accused President William Ruto's administration of using a police unit known as the Operation Support Unit (OSU) to target government critics. Speaking in an interview on NTV on August 10, Kalonzo alleged that the unit works alongside militias and goons to intimidate and harass political opponents. The former Vice President claimed the little-known unit has been used to target his supporters, particularly those who have remained in opposition politics. Did you know there's a police unit called OSU, the Operation Support Unit, a unit that is working with the goons, the militias, to terrorise political opponents,” Kalonzo stated. Wiper Party Leader Kalonzo Musyoka addressing congregants at an event organised by veteran journalist Lizah Mutuku on Saturday, May 9, 2026.