(a) The executive director or a staff member of the commission designated by the executive director shall investigate a complaint and determine if there is reasonable cause to believe that the respondent engaged in an unlawful employment practice as alleged in the complaint.
(b) If the federal government has referred the complaint to the commission or has deferred jurisdiction over the subject matter of the complaint to the commission, the executive director or the executive director's designee shall promptly investigate the allegations stated in the complaint.