A district attorney shall be recused when he:
(1) Has a personal interest in the cause or grand jury proceeding which is in conflict with fair and impartial administration of justice;
(2) Is related to the party accused or to the party injured, or to the spouse of the accused or party injured, or to a party who is a focus of a grand jury investigation, to such an extent that it may appreciably influence him in the performance of the duties of his office; or
(3) Has been employed or consulted in the case as attorney for the defendant before his election or appointment as district attorney.
Amended by Acts 1980, No. 195, §1, eff. July 8, 1980.