The tangena ordeal was commonly administered to determine the guilt or innocence of an accused person for any crime, including the practice of Christianity, and involved ingestion of the poison contained within the nut of the tangena tree (Cerbera odollam).
A proba tangena era comunmente administrada para determinar a culpa ou inocencia dunha persoa acusada de calquera crime, incluíndo a práctica do cristianismo, e implica o consumo do veleno contido nos froitos da árbore tangena.