Thesis
Courts should find customary law by asking communities what they do now, not by reading what colonial officials wrote down
Its coordinates: 6.2 Philosophy of Law
Where it stands
Under South Africa's Constitution, customary law is recognised alongside the common law, subject to the Bill of Rights. The hard question is a practical one that I watch play out in court: when a dispute turns on custom, how does a judge find out what the custom is?
For most of the last century the answer was the "official" version: what colonial and apartheid administrators, missionaries and anthropologists wrote down, often after asking a few senior men. Those books froze practices that were always moving, and froze them in a shape that suited indirect rule.
Our Constitutional Court has pushed back. In the Bhe case it distinguished official customary law from "living" customary law. In Shilubana it accepted that the Valoyi traditional authorities could develop their own law of succession so that a woman could become chief, and held that courts must respect a community's power to change its customs.
My claim: the source of customary law is the living practice of the community, and courts should establish it the way you establish any fact about a living practice, by evidence from the people who practise it now.
The objections I hear: living law is hard to prove; whoever speaks for "the community" may be the powerful again; and a law that changes whenever practice changes gives nobody fair warning. I think each has an answer. Convince me otherwise.