Judgment will be delivered on Friday in Duduzane Zuma's culpable homicide and negligent driving case.
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His lawyers have asked the court to acquit him on all charges because of insufficient evidence.
In 2014, Zuma's Porsche crashed into a taxi in Sandton, instantly killing a passenger.
Initially, the National Prosecuting Authority declined to press charges.
But this decision was reviewed last year after AfriForum announced its intention to institute a private prosecution.