Whatever is incident to a court of judicature is necessary to the House of Commons as judging in elections. But a power of making incapacities is not necessary to a court of judicature: therefore a power of making incapacities is not necessary to the House of Commons.
Incapacity, declared by whatever authority, stands upon two principles: first, an incapacity arising from the supposed incongruity of two duties in the commonwealth; secondly, an incapacity arising from unfitness by infirmity of nature or the criminality of conduct. As to the first class of incapacities, they have no hardship annexed to them. The persons so incapacitated are paid by one dignity for what they abandon in another, and for the most part the situation arises from their own choice. But as to the second, arising from an unfitness not fixed by Nature, but superinduced by some positive acts, or arising from honorable motives, such as an occasional personal disability, of all things it ought to be defined by the fixed rule of law, what Lord Coke calls the golden metwand of the law, and not by the crooked cord of discretion. Whatever is general is better borne. We take our common lot with men of the same description. But to be selected and marked out by a particular brand of unworthiness among our fellow-citizens is a lot of all others the hardest to be borne, and consequently is of all others that act winch ought only to be trusted to the legislature, as not only legislative in its nature, but of all parts of legislature the most odious. The question is over, if this is shown not to be a legislative act.
But what is very usual and natural is, to corrupt judicature into legislature. On this point it is proper to inquire whether a court of judicature which decides without appeal has it as a necessary incident of such judicature, that whatever it decides is de jure law. Nobody will, I hope, assert this; because the direct consequence would be the entire extinction of the difference between true and false judgments. For if the judgment makes the law, and not the law directs the judgment, it is impossible there should be such a thing as an illegal judgment given.
But instead of standing upon this ground, they introduce another question wholly foreign to it: Whether it ought not to be submitted to as if it were law? And then the question is,—By the Constitution of this country, what degree of submission is due to the authoritative acts of a limited power? This question of submission, determine it how you please, has nothing to do in this discussion and in this House. Here it is not, how long the people are bound to tolerate the illegality of our judgments, but whether we have a right to substitute our occasional opinion in the place of law, so as to deprive the citizen of his franchise....