BSA Section 65-Proof Of Signature And Handwriting Of Person Alleged To Have Signed Or Written Document Produced

If a document is alleged to be signed or to have been written wholly or in part by any person, the signature or the handwriting of so much of the document as is alleged to be in that person's handwriting must be proved to be in his handwriting.

BSA Section 64-Rules as to notice to produce

BSA Section 66-Proof as to electronic signature