The possession, cultivation and dagga use will now be allowed for private use according to The Western Cape High Court ruling on Friday, 31 March.
They sent through a successful application to have the prohibition of dagga declared unconstitutional.
It also ruled that Parliament has 24 months to change sections of the Drug Trafficking Act and the Medicines Control Act.
Acton, Prince, and 18 plaintiffs applied to the court for the Criminal Prohibition of Dagga Act (sections 4b and 5c), read with certain sections of Part III of Schedule 2 of the Drugs and Drug Trafficking Act.
These sections make it a crime to possess a drug, unless it is for a variety of medical reasons. The Drugs and Trafficking Act defines what constitutes a drug.
The plaintiffs also challenged the Medicines and Related Substances Act.
In their submission, they stated that the laws prohibiting dagga use are unfair, discriminatory and outdated.
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