Mau Mau Uprising 1952, the poisonous latex of the African milk bush was used by members of Mau Mau to kill cattle in an incident of biological warfare. Although Mau Mau was effectively crushed by the end of 1956, it was not until the First Lancaster House Conference, in January 1960, that native Kenyan majority rule was established and the period of colonial transition to independence initiated. Before the conference, it was anticipated by both native Kenyan and European leaders that Kenya was set for a European-dominated multi-racial government. There is continuing debate about Mau Mau's and the rebellion's effects on decolonisation and
Mau Mau Uprising view was that Mau Mau as a savage, violent, and depraved tribal cult, an expression of unrestrained emotion rather than reason. Mau Mau was "perverted tribalism" that sought to take the Kikuyu people back to "the bad old days" before British rule. The official British explanation of the revolt did not include the insights of agrarian and agricultural experts, of economists and historians, or even of Europeans who had spent a long period living amongst the Kikuyu such as Louis Leakey. Not for the first time, the British instead relied on the purported insights of the ethnopsychiatrist; with Mau Mau,