(a) On receipt of a complaint or on its own motion, the board shall review and investigate an alleged act or omission that the board believes is a ground for disciplinary action.
(b) An investigator designated by the presiding officer of the board or the executive director shall investigate each allegation in a complaint to determine whether probable cause exists for a hearing on the complaint.
(c) If the board determines that a complaint does not present facts that are grounds for disciplinary action, the board or the executive director shall dismiss the complaint and may not take further action.
(d) An investigation of an alleged violation by a person registered under this chapter may not be terminated solely on the basis that the person fails to renew the registration.