Section He-P 1404.02 - Complaint Investigation(a) All complete complaints received by the department in accordance with He-P 1404.01 shall be investigated by the commissioner.(b) The commissioner shall contact and individually question the complainant and the licensee or person practicing without a license about the complaint in an effort to determine if the complaint can be substantiated.(c) The licensee or person practicing without a license shall cooperate with the department throughout the investigation.(d) Upon completion of the investigation, the commissioner shall make a determination based on information received during the investigation as to whether the complaint is substantiated.(e) If there is insufficient evidence to support the allegation(s) the department shall take no further action.(f) Copies of the investigative findings shall be sent to the complainant and the licensee or person practicing without a license, indicating whether or not the complaint is substantiated.(g) If it is determined by the commissioner that the licensee has violated any provisions of He-P 1400 or RSA 328-H, except violations which warrant revocation pursuant to He-P 1404.04(g) , the department shall, within 15 days of the determination, issue to the licensee a directed plan of correction indicating the steps that must be taken in order to correct the violation(s) .N.H. Admin. Code § He-P 1404.02