(a) The state police shall promulgate rules according to the provisions of article three, chapter twenty-nine-a of this code to provide for the classification of information and records as confidential that:
(1) Are otherwise confidential under state or federal law or rules promulgated pursuant to state or federal law;
(2) Are related to the investigation by a law-enforcement agency of a missing child or an unidentified body, if the state police, in consultation with the law-enforcement agency, determines that release of the information would be deleterious to the investigation;
(3) Are records or notations that the clearinghouse maintains for internal use in matters relating to missing children and unidentified bodies and the state police determines that release of the internal documents might interfere with an investigation by a law-enforcement agency in West Virginia or any other jurisdiction; or
(4) Are records or information that the state police determines might interfere with an investigation or otherwise harm a child or custodian.
(b) The rules may provide for the sharing of confidential information with the custodian of the missing child.