(a) A member of the commission may not participate in a commission proceeding relating to any of the following actions if the member is the subject of the action:
(1) a formal investigation by the commission;
(2) a sworn complaint filed with the commission; or
(3) a motion adopted by vote of at least six members of the commission.
(b) A member of the commission may not participate in or vote on any matter before the commission if the matter concerns the member directly or an individual related to the member within the second degree by affinity or consanguinity.