When physical abuse was no longer allowed, the authorities and their warders resorted to actions that would have a negative psychological effect on the prisoners, such as interrupting or preventing academic education, censoring letters and visits, denying access to news and newspapers. For example in 1969, all postgraduate study was stopped and prisoners were prohibited from including history, law and political science in their undergraduate curricula. From 1975, visits were restricted to first-degree relatives only.
Prisoners were given minimal clothing with African prisoners getting short pants. They were not provided with underwear. There were no beds and prisoners had to sleep on thin mats on a cement floor.