Director of Prisons of Rhodesia to 1954, prisons in Southern Rhodesia were administered by the Southern Rhodesia Prison Department (SRPD). On 30 November 1954, the Federal Assembly of the Federation of Rhodesia and Nyasaland passed the Prisons Department Act (49/1954), which incorporated the SRPD into the Federal Prison Service (FPS), effective 1 December 1954. This arrangement continued until December 1963, when the Federation of Rhodesia and Nyasaland dissolved and autonomy was returned to the individual colonies of Southern Rhodesia, Northern Rhodesia, and Nyasaland, the latter two of which gained independence in 1964 as Zambia and Malawi, respectively. From 1963, the service continued as the Southern
Northern Rhodesia these copper deposits could not be exploited commercially until the Southern Rhodesian railway had extended across the Zambezi and continued northward, to reach the Belgian Congo border, which it did in 1909. By that time, mining had started in Katanga, where rich copper oxide ores occurred near the surface. In Northern Rhodesia, the surface ores were of poorer quality, and copper was only worked intermittently at Bwana Mkubwa, until in 1924 rich copper sulphide ores were discovered about 100 feet below the surface. Prior to 1924, there had not been significant exploitation of Northern Rhodesia's mineral resources: there was some