 He was also active with the Coalition Against Police Abuse (CAPA) in Los Angeles.In 1979, Umoja was in a committee of the National Black Human Rights Coalition, which produced a document “detailing the Black liberation movement’s demand for self-determination, reparations and a call to release political prisoners.” It was presented to the Secretary General of the United Nations at that time, who was Salim Salim of Tanzania.Umoja has varied experiences as an educator.