According to this article in The Atlantic Hex Appeal - Magazine - The Atlantic people are regularly charged and convicted of witchcraft in Africa and receive light sentences. The main reason for this is apparently they fear that without prosecution the common people will lynch suspected witches. Perhaps it never occurred to them to stop this insanity and just stop and prosecute anyone who participates in lynching.
In my book about the witch trials, I pointed out that the common people of New England generally supported the witch trials and it was the elite who were skeptical of the claims. Eventually the elite put an end to the persecutions.