(a) The commission may bring a civil action against a respondent if:
(1) the commission determines that there is reasonable cause to believe that the respondent engaged in an unlawful employment practice;
(2) the commission's efforts to resolve the discriminatory practice to the satisfaction of the complainant and respondent through conciliation have been unsuccessful; and
(3) a majority of the commissioners determines that the civil action may achieve the purposes of this chapter.
(b) The complainant may intervene in a civil action brought by the commission.