In this judgment of the Chief Justice Vaughan, he was led to enter on a question much controverted in later times, the legal right of the jury, without the direction of the judge, to find a general verdict in criminal cases, where it determines not only the truth of the facts as deposed, but their quality of guilt or innocence; or as it is commonly, though not perhaps quite accurately worded, to judge of the law as well as the fact. It is a received maxim with us, that the judge cannot decide on questions of fact, nor the jury on those of law. Whenever the general principle, or what may be termed the major proposition of the syllogism, which every litigated case contains, can be extracted from the particular circumstances to which it is supposed to apply, the court pronounce their own determination, without reference to a jury. The province of the latter, however, though it properly extend not to any general decision of the law, is certainly not bounded, at least in modern times, to a mere estimate of the truth of testimony. The intention of the litigant parties in civil matters, of the accused in crimes, is in every case a matter of inference from the testimony or from the acknowledged facts of the case; and wherever that intention is material to the issue, is constantly left for the jury's deliberation. There are indeed rules in criminal proceedings which supersede this consideration; and where, as it is expressed, the law presumes the intention in determining the offence. Thus, in the common instance of murder or manslaughter, the jury cannot legally determine that provocation to be sufficient, which by the settled rules of law is otherwise; nor can they, in any case, set up novel and arbitrary constructions of their own without a disregard of their duty. Unfortunately it has been sometimes the disposition of judges to claim to themselves the absolute interpretation of facts, and the exclusive right of drawing inferences from them, as it has occasionally, though not perhaps with so much danger, been the failing of juries to make their right of returning a general verdict subservient to faction or prejudice. Vaughan did not of course mean to encourage any petulance in juries that should lead them to pronounce on the law, nor does he expatiate so largely on their power as has sometimes since been usual; but confines himself to a narrow, though conclusive line of argument, that as every issue of fact must be supported by testimony, upon the truth of which the jury are exclusively to decide, they cannot be guilty of any legal misdemeanour in returning their verdict, though apparently against the direction of the court in point of law; since it cannot ever be proved that they believed the evidence upon which that direction must have rested.[17]