12. Restrictions on power of members to discuss and vote in certain cases.- No members of the Committee shall vote or take part in the discussion of, and no member of the Council shall vote or take part in the discussion of any complaint coming up for consideration at a meeting of the Committee or the Council if the case is one in which he is personally involved or has any direct or indirect interest by himself or his partner, or in which he is interested professionally on behalf of a client or as an agent or representative for any newspaper, news agency, editor or other working journalist as the case may be. | 