Mau Mau Uprising this point), and air attacks were initially permitted only in the forests. Operation Mushroom extended bombing beyond the forest limits in May 1954, and Churchill consented to its continuation in January 1955. Baring knew the massive deportations to the already-overcrowded reserves could only make things worse. Refusing to give more land to the Kikuyu in the reserves, which could have been seen as a concession to Mau Mau, Baring turned instead in 1953 to Roger Swynnerton, Kenya's assistant director of agriculture. The primary goal of the Swynnerton Plan was the creation of family holdings large enough to keep families self-sufficient
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