(1) A matter or thing done or omitted to be done by a decision-maker in the exercise of the decision-maker's functions does not, if the matter or thing was done or omitted in good faith, subject the decision-maker personally to any action, liability, claim or demand.
(2) Any such liability attaches instead to the Crown.
(3) A decision-maker is, in any legal proceedings, competent but not compellable to give evidence or produce documents in respect of any matter in which he or she was involved in the course of the exercise of his or her functions as a decision-maker.