(1) Evidence of the reasons for a decision made by a person—
(a) acting as judge, magistrate or like officer in proceedings; or
(b) acting as an arbitrator in respect of a dispute that has been submitted to the person, or to the person and one or more other persons, for arbitration,
or the deliberations of a person so acting in relation to such a decision, may not be given by that person, or by a person who was under the direction or control of that person, in proceedings to which this Act applies that is not the proceedings concerned.
(2) Subsection (1) does not prevent the admission or use, in proceedings of published reasons for a decision.
(3) Evidence of the reasons for a decision made by a member of a jury in proceedings, or of the deliberations of a member of a jury in relation to such a decision, may not be given by any of the members of that jury in proceedings to which this Act applies that is not the proceedings concerned.