My Lords, in answer to this part of your Lordships' question, I am to inform your Lordships, that the Judges are of opinion, in the case propounded, that the counsel cannot, by questions addressed to the witness, enquire whether or no such statements are contained in the letter; but, that the letter itself must be read to manifest whether such statements are or are not contained in that letter. My Lords, in delivering this opinion to your Lordships, the Judges do not conceive that they are presuming to offer to your Lordships any new rule of evidence, now, for the first time, introduced by them; but, that they found their opinion upon what, in their judgment, is a rule of evidence as old as any part of the common law of England, namely, that the contents of a written instrument, if it be in existence, are to be proved by that instrument itself, and not by parol evidence. The latter part of your Lordships' question is, "In what stage of the proceedings, according to the practice of the courts below, such letter could be required by counsel to be read or be permitted by the court below to be read?" My Lords, in answer to this, I am to inform your Lordships, that the Judges are of opinion, according to the ordinary rule of proceeding in the courts below, the letter is to be read as the evidence of the cross-examining counsel, as part of his evidence in his turn, after he shall have opened his case; that that is the ordinary course; but that, if the counsel, who is cross-examining, suggests to the Court that he wishes to have the letter read immediately, in order that he may, after the contents of that letter shall have been made known to the Court, found certain questions upon the contents of that letter, to be propounded to the witness, which could not well or effectually be done without reading the letter itself, that becomes an excepted case in the courts below, and, for the convenient administration of justice, the letter is permitted to be read at the suggestion of the counsel, but considering it, however, as part of the evidence of the counsel proposing it, and subject to all the consequences of having such letter considered as part of his evidence.
1. (1833) 6 Car. & P. 289 [172 E.R. 1245].
2. (1820) 2 Brod. & B. 284, at pp. 289-290 [129 E.R. 976, at p. 978].