The Internal Security Act (Suppression of Communism Act) No 44 of 1950 (commenced 17 July 1950) banned communism and the Community Party in South Africa. Communism was defined so broadly that it covered any call for radical change. Communists could be banned from participating in a political organization and restricted to a particular area. Other listed organizations and persons believed to be promoting 'communism' (which was very broadly defined) were also banned.
Repealed by the Internal Security and Intimidation Amendment Act 138 of 1991.