K.S.A. 60-461

Any writing admissible under exceptions (o), (p), (q) and (ee) of K.S.A. 60-460 , and amendments thereto, shall be received only if the party offering such writing has delivered a copy of it or so much as may relate to the controversy, to each adverse party a reasonable time before trial unless the judge finds that such adverse party has not been unfairly surprised by the failure to deliver such copy.