72. Admissibility of expert opinion and certain expressions of non-expert opinion
(1) Subject to any court procedure rules made in pursuance of this Chapter, where a person is called as a witness in any proceedings, his opinion on any relevant matter on which he is qualified to give expert evidence shall be admissible in evidence.
(2) Where a person is called as witness in any proceedings, a statement of opinion by him on any relevant matter on which he is not qualified to give expert evidence, if made as a way of conveying relevant facts personally perceived by him, is admissible as evidence of what he perceived.
(3) In this section "relevant matter" includes an issue in the proceedings in question.