Your Committee, not having learned that the resolutions of the Judges (by which the Lords have been guided) were supported by any authority in law to which they could have access, have heard by rumor that they have been justified upon the practice of the courts in ordinary trials by commission of Oyer and Terminer. To give any legal precision to this term of _practice_, as thus applied, your Committee apprehends it must mean, that the judge in those criminal trials has so regularly rejected a certain kind of evidence, when offered there, that it is to be regarded in the light of a case frequently determined by legal authority. If such had been discovered, though your Committee never could have allowed these precedents as rules for the guidance of the High Court of Parliament, yet they should not be surprised to see the inferior judges forming their opinions on their own confined practice. Your Committee, in their inquiry, has found comparatively few reports of criminal trials, except the collection under the title of "State Trials," a book compiled from materials of very various authority; and in none of those which we have seen is there, as appears to us, a single example of the rejection of evidence similar to that rejected by the advice of the Judges in the House of Lords. Neither, if such examples did exist, could your Committee allow them to apply directly and necessarily, as a measure of reason, to the proceedings of a court constituted so very differently from those in which the Common Law is administered. In the trials below, the Judges decide on the competency of the evidence before it goes to the jury, and (under the correctives, in the use of their discretion, stated before in this Report) with great propriety and wisdom. Juries are taken promiscuously from the mass of the people. They are composed of men who, in many instances, in most perhaps, never were concerned in any causes, judicially or otherwise, before the time of their service. They have generally no previous preparation, or possible knowledge of the matters to be tried, or what is applicable or inapplicable to them; and they decide in a space of time too short for any nice or critical disquisition. The Judges, therefore, of necessity, must forestall the evidence, where there is a doubt on its competence, and indeed observe much on its credibility, or the most dreadful consequences might follow. The institution of juries, if not thus qualified, could not exist. Lord Mansfield makes the same observation with regard to another corrective of the short mode of trial,--that of a _new trial_.