Witchcraft and British Colonial Law
Witchcraft was not appropriately handled by colonial powers who often understimated its influence. Where there were laws agains it, these laws were inadquate as they were made outside of the input of indigenous persons.  Any law that will try to combat the phenonmenon of witchcraft must be conjured with the input of those that practice it.
Browne, Orde, J.
Africa; Witchcraft.
Journal of the International African Institute, Vol. 8, No.4 (Oct 1935) pp. 481-487.