8.15. If in the course of a proof an objection is made to the admissibility of any evidence and that line of evidence is not abandoned by the party pursuing it, the sheriff must except where–
(a)he is of the opinion that the evidence is clearly irrelevant or scandalous; or
(b)it is an objection falling within rule 8.16(1),
note the terms of the objection and allow the evidence to be led reserving the question of its admissibility to be decided by him at the close of the proof.