These circumstances, as expounded by Eymeric in his “Directorium,”[107] are (a) the inconsistence of the accused’s replies upon matters of detail whilst denying the main fact; (b) the existence of semi-plenal proof of his offence.

This semi-plenal proof is considered forthcoming—

(a) When an accused is “reputed” to be a heretic and there is but one witness against him who can depone to having seen or heard him do or say that which is against the Faith. (Two witnesses were by law required to establish his guilt.)

(b) When in the absence of witnesses there are grounds for vehement or violent suspicion.

(c) When there is no evil “reputation” attaching to the accused, but one witness against him and grounds for vehement or violent suspicion—i.e. not actual suspicion but indications of it; a suspicion of suspicion, as it were. The distinction is most elusively fine.

The scholiast Pegna adds in his commentaries that this combination of “reputation” (or grounds for suspicion) and one witness is not necessary to justify submitting the accused to the question—

(a) When to evil reputation are added evil morals, which lead easily to heresy—thus those who are incontinent and very greatly addicted to women persuade themselves that this incontinence is not in itself a sin. (Such an opinion if proclaimed would amount to heresy, therefore one who acts as if he held it lays himself open to suspicion of heresy.)

(b) When the accused who has incurred evil reputation shall have fled. (The circumstance of his flight is accepted as evidence of evil conscience.)[108]

Eymeric further enjoins that the question shall be employed only when all other means of obtaining the truth shall have failed, and he recommends the use of exhortation, gentleness, and ruse to draw the truth from the prisoner.[109]

He observes that, after all, not even the torture can be depended upon always to extract the truth. There are weak men who under the first torments confess even what they have not done; and there are others so stubborn and vigorous that they can suffer the greatest pains; there are those who having already undergone torture are able to endure it with greater fortitude, knowing how to adapt themselves to it; and there are others still who, by having recourse to sorcery, remain almost insensible to the pain and would die before divulging anything.

These last, he warns inquisitors, use passages from the Gospel curiously inscribed upon virgin parchment, intermingling in these the names of angels that are unknown, designs of circles, and magic characters. These charms they bear about their bodies.

“I don’t yet know,” he confesses, “what remedies are available against these sorceries; but it will be well to strip and closely to examine the patient before putting him to the question.”

He recommends that when the accused has been sentenced to torture, and whilst the executioners are making ready to perform it, the inquisitor should continually endeavour to induce the accused to confess. The torturers should strip him with precipitation, but with a sorrowful air and almost as if troubled for him (quasi turbati). When stripped, he should be taken aside and once more exhorted to confess. His life may be promised him, provided that the crime of which he is accused is not such as to make it forfeit.