Refreshing memory of witness

(1) A witness may, while under examination, refresh his memory by referring to any writing made by himself at the time of the transaction concerning which he is questioned, or so soon afterwards that the judge considers it likely that the transaction was at that time fresh in his memory. (2) The witness may also refer to any writing made by any other person, and read by the witness within the time mentioned in sub-section (1) if, when he read it, he knew it to be correct. (3) An expert may refresh his memory by reference to professional treatises. (4) Any such writing or treatise must be produced and shown to the opposite party, if he requires it, and that party may, if he pleases, cross-examine the witness thereupon. 44