These tests were applied when it was desired to discover a thief, or when a village wanted to know whose spirit dwelt in the leopard that slew a goat, or when a chief wished to prove that his wife was faithful to him in her heart, but chiefly in cases of sickness or death. They believed that sickness was unnatural, and that death never occurred except from extreme old age. When a freeman became ill or died, sorcery would be alleged. The witchdoctor would be called in, and he would name one individual after another, and all, bond and free, were chained and tried, and there would be much grim merriment as the victims writhed in agony and their heads were chopped off. The skulls would be kept in the family as trophies. Occasionally the relations of the victims would be powerful enough to take exception to the summary procedure and seek redress by force of arms, and a vendetta would reign for years.
If a man or woman were blamed for some evil deed an appeal could be made to the law of substitution, and a sufficient number of slaves could be furnished as would be equivalent for themselves, and these would be killed in their stead. The eldest son of a free House, for instance, would be spared by the sacrifice of the life of a younger brother.
The fact that a man's position in the spirit-world was determined by his rank and wealth in this one, demanded the sacrifice of much life when chiefs died. A few months before Miss Slessor went up amongst them a chief of moderate means died, and with him were buried eight slave men, eight slave women, ten girls, ten boys, and four free wives. These were in addition to the men and women who died as a result of taking the poison ordeal. Even when death was due to natural decay the retinue provided was the same. After her settlement she made careful enquiry, and found that the number of lives sacrificed annually at the instance of this custom could not have averaged fewer than 150 within a radius of twenty miles, while the same number must have died from ordeals and decapitation on charges of causing sickness. To these had to be added the number killed in the constant warfare.
Infanticide was also responsible for much destruction of life. Twin murder was practised with an even fiercer zeal than it had been in Calabar. Child life in general was of little value.