mainly, .. of course, but not entirely because it was once a British colony. then a part of the British Commonwealth, then it zoomed off and broke ties, and labored under world sanctions, then it rejoined the British Commonwealth as an Independent Republic..
about 97% of SA law is British. the odds and ends are Dutch / Roman law.. .
and Vipes!!.. the 'innocent bystander ' law.. which of course, covers the private (lay ) witnesses.. like Madame VanDer Mewre, Mrs Burger and Dr and Mrs Stipps..
one of my fave laws of all.