It is supposed that, if twelve men be taken, _by lot_, from the mass of the people, without the possibility of any previous knowledge, choice, or selection of them, on the part of the government, the jury will be a fair epitome of "the country" at large, and not merely of the party or faction that sustain the measures of the government; that substantially all classes of opinions, prevailing among the people, will be represented in the jury; and especially that the opponents of the government, (if the government have any opponents,) will be represented there, as well as its friends; that the classes, who are oppressed by the laws of the government, (if any are thus oppressed,) will have their representatives in the jury, as well as those classes, who take sides with the oppressor--that is, with the government. It is fairly presumable that such a tribunal will agree to no conviction except such as _substantially the whole country_ would agree to, if they were present, taking part in the trial. A trial by such a tribunal is, therefore, in effect, "a trial by the country." In its results it probably comes as near to a trial by the _whole_ country, as any trial that it is practicable to have, without too great inconvenience and expense. And as unanimity is required for a conviction, it follows that no one can be convicted, except for the violation of such laws as substantially the whole country wish to have maintained. The government can enforce none of its laws, (by punishing offenders, through the verdicts of juries,) except such as substantially the whole people wish to have enforced. The government, therefore, consistently with the trial by jury, can exercise no powers over the people, (or, what is the same thing, over the accused person, who represents the rights of the people,) except such as substantially the whole people of the country consent that it may exercise. In such a trial, therefore, "the country," or the people, judge of and determine their own liberties against the government, instead of the government's judging of and determining its own powers over the people. But all this "trial by the country" would be no trial at all "by the country," but only a trial by the government, if the government could either declare who may, and who may not, be jurors, or could dictate to the jury anything whatever, either of law or evidence, that is of the essence of the trial. If the government may decide who may, and who may not, be jurors, it will of course select only its partisans, and those friendly to its measures. It may not only prescribe who may, and who may not, be eligible to be drawn as jurors; but it may also question each person drawn as a juror, as to his sentiments in regard to the particular law involved in each trial, before suffering him to be sworn on the panel; and exclude him if he be found unfavorable to the maintenance of such a law.[1]