(1) If a professional review committee is established pursuant to this section to investigate the quality of care, including utilization review, being given by a person licensed pursuant to this article, it shall include in its membership at least three persons licensed under this article, but such committee may be authorized to act only by:

(a) The board; or

(b) A society or an association of persons licensed pursuant to this article whose membership includes not less than one-third of the persons licensed pursuant to this article residing in this state if the licensee whose services are the subject of review is a member of such society or association.

(2) Any member of the board or professional review committee, the board's or professional review committee's staff, any person acting as a witness or consultant to the board or committee, any witness testifying in a proceeding authorized under this article, and any person who lodges a complaint pursuant to this article shall be immune from liability in any civil action brought against him or her for acts occurring while acting in his or her capacity as board or professional review committee member, staff, consultant, or witness, respectively, if such individual was acting in good faith within the scope of his or her respective capacity, made a reasonable effort to obtain the facts of the matter as to which he or she acted, and acted in the reasonable belief that the action taken by him or her was warranted by the facts. Any person participating in good faith in lodging a complaint or participating in any investigative or administrative proceeding pursuant to this article shall be immune from any civil or criminal liability that may result from such participation.