THREE:That the scruple to convict diminishes the certainty of punishment, and therefore raises hopes of impunity, is illustrated by the case of two American brothers who, desirous to perpetrate a murder, waited till their victim had left their State, in which capital punishment had been abolished, and had betaken himself to a State which still retained it, before they ventured to execute their criminal intention. That such reluctance to convict is often most injurious to[42] the public is proved by the case of a woman at Chelmsford who some years ago was acquitted, in spite of strong evidence, on a charge of poisoning, and who, before her guilt was finally proved, lived to poison several other persons who would otherwise have escaped her arts.[27] Our laws prohibit suggestive (leading) questions in a lawsuit: those, that is (according to the doctors of law), which, instead of applying, as they should do,[145] to the genus in the circumstances of a crime, refer to the species; those, in other words, which from their immediate connection with a crime suggest to the accused a direct answer. Questions, according to the criminal lawyers, ought, so to speak, to envelop the main fact spirally and never to attack it in a direct line. The reasons for this method are, either that an answer may not be suggested to the accused which may place him face to face with the charge against him, or perhaps because it seems unnatural for him directly to criminate himself. But, whichever of these reasons it may be, the contradiction is remarkable between the existence of such a custom and the legal authorisation of torture; for what interrogatory can be more suggestive than pain? The former reason applies to the question of torture, because pain will suggest to a strong man obstinate silence, in order that he may exchange the greater penalty for the lesser, whilst it will suggest to a weak man confession, in order that he may escape from present torment, which has more influence over him than pain which is to come. The other reason evidently applies too, for if a special question leads a man to confess against natural right, the agonies of torture will more easily do the same. But men are more governed by the difference of names than by that of things.