There is one noteworthy innovation, however, in the Partidas which was subsequently introduced widely into the torture codes of Europe, and which, in theory at least, greatly extended their sphere of action. This was the liability of freemen as witnesses. When a man’s evidence was vacillating and contradictory, so as to afford reasonable suspicion that he was committing perjury, all criminal judges were empowered to subject him to torture, so as to ascertain the truth, provided always that he was of low condition, and did not belong to the excepted classes.[1487] With all this, there are indications that Alfonso designed rather to restrict than to extend the use of torture, and, if his general instructions could have been enforced, there must have been little occasion for its employment under his code. In one passage he directs that when the evidence is insufficient to prove a charge, the accused, if of good character, must be acquitted; and in another he orders its application only when common report is adverse to a prisoner, and he is shown to be a man of bad repute.[1488] Besides, an accuser who failed to prove his charge was always liable to the _lex talionis_, unless he were prosecuting for an offence committed on his own person, or for the murder of a relative not more distant than a brother or sister’s child.[1489] The judge, moreover, was strictly enjoined not to exceed the strict rules of the law, nor to carry the torture to a point imperilling life or limb. If he deviated from these limits, or acted through malice or favoritism, he was liable to a similar infliction on his own person, or to a penalty greater than if he were a private individual.[1490] The liability of witnesses was further circumscribed by the fact that in cases involving corporal punishment, no one could be forced to bear testimony who was related to either of the parties as far as the fourth degree of consanguinity, in either the direct or collateral lines, nor even when nearly connected by marriage, as in the case of fathers-in-law, step-children, etc.[1491] Orders to inflict torture, moreover, were one of the few procedures which could be appealed from in advance.[1492] Several of these limitations became generally adopted through Europe. We shall see, however, that they afforded little real protection to the accused, and it is more than probable that they received as little respect in Spain as elsewhere. There were many varieties of torture in use at the period, but Alfonso informs us that only two were commonly employed, the scourge and the strappado, which consisted in hanging the prisoner by the arms while his back and legs were loaded with heavy weights.[1493] The former of these, however, seems to be the only one alluded to throughout the code.