International audienceAmong the Banda of the Central African Republic, representations of witchcraft explain and give meaning to misfortunes and death. This article discusses an informal interview with a young man who had been condemned and imprisoned by the CAR penal code for committing acts of witchcraft, and explores how the imaginary of witchcraft makes use of elements of scientific discourse, establishing a hierarchy between the power attributed to western scienceand that attributed to witches. Through the idea of « episteme » introduced by Michel Foucault, and that of « disturbances » introduced by Georges Devereux, this text analyzes some epistemological issues characterizing the ethnography of witchcraft in Equatorial Africa.Parmi l...