He is best known for his work promoting the use of the Swahili language. He is the founding-Chairman of Chama cha Kiswahili cha Taifa (CHAKITA-Kenya), the Kenya National Swahili Committee which guided the process of developing the Languages of Kenya Policy and Bill. He is the Chair of the Board of the Legal Resources Foundation Trust; a not-for-profit Kenyan civil organization which promotes access to justice through human education, research and advocacy. 