Mau Mau Uprising perpetrated by Kenyan security forces who were partially overseen by British commanders. Official estimates place the death toll from the first Lari massacre at 74, and the second at 150, though neither of these figures account for those who 'disappeared'. Whatever the actual number of victims, "[t]he grim truth was that, for every person who died in Lari's first massacre, at least two more were killed in retaliation in the second." Aside from the Lari massacres, Kikuyu were also tortured, mutilated and murdered by Mau Mau on many other occasions. Mau Mau racked up 1,819 murders of their fellow native
Mau Mau Uprising ordered all Mau Mau suspects to be screened. Of the scores of screening camps which sprang up, only fifteen were officially sanctioned by the colonial government. Larger detention camps were divided into compounds. The screening centres were staffed by settlers who had been appointed temporary district-officers by Baring. Thomas Askwith, the official tasked with designing the British 'detention and rehabilitation' programme during the summer and autumn of 1953, termed his system the "Pipeline". The British did not initially conceive of rehabilitating Mau Mau suspects through brute force and other ill-treatment—Askwith's final plan, submitted to Baring in October 1953, was intended