47. Opinions as to handwriting when relevant.
When the Court has to form an opinion as to the person by whom document was written or signed, the opinion of any person acquainted with the handwriting of the person by whom it is supposed to be written or signed that it was or was not written or signed by that person, is a relevant fact.
A person is said to be acquainted with the handwriting of another person when he has seen that person write, or when he has received document purporting to be written by that person in answer to documents written by himself to under his authority and addressed to that person, or when in the ordinary course of business document purporting to be written by that person have been habitually submitted to him.
The question is whether a given letter is in the handwriting of A, a merchant in London.
B is a merchant in Calcutta, who has written letters addressed to A and received letters purporting to be written by him. G is B’s clerk, whose duty it was to examine and file B’s correspondence. D is B’s broker, to whom B habitually submitted thee letters purporting to be written by A for the purpose advising with him thereon.
The opinions of B,C and D on the question, whether the letter is in the handwriting of A, are relevant though neither B, C or D ever saw A write.