28. (1) No copy of any book or other document shall be admitted in evidence, under the authority of section 23, 24, 25, 26 or 27, on any trial, unless the party intending to produce the copy has before the trial given to the party against whom it is intended to be produced reasonable notice of that intention.

(2) The reasonableness of the notice referred to in subsection (1) shall be determined by the court, judge or other person presiding, but the notice shall not in any case be less than seven days.

R.S., c. E-10, s. 28.