The most immediate impact of de Damhouder's works was on the
witch trials of the time, in which the
Praxis rerum criminalium and its translations were cited regularly as fundamental works. The
Praxis dedicated a lengthy 64 paragraphs to
witchcraft, copied in large part from
Paulus Grillandus's
Tractatus de sortilegiis. According to the
Praxis, witchcraft was a heinous crime that went unpunished too often because of the ignorance of magistrates, and which also covered
love charms,
fortune-telling,
astrology and other superstitious practices. De Damhouder expanded on this by providing detailed practical advice (backed up by examples from his own court practice) on how to conduct interrogations of suspected witches under
torture. These included, for example, the recommendation to shave off all hair and to inspect all
orifices of the suspect, in order to uncover hidden magical
amulets that would make the wearer withstand torture. He asserted that a single indication of guilt was sufficient for
torture to be applied to achieve a confession, though he did recognize that too much torture can produce false
confessions. ==References==