In addition to any other immunity he may have, any person who, in good faith with reasonable cause and without malice, acts to report, investigate, or cause any investigation to be made into the activities of any student or students or any other person or persons as they relate to conduct involving bomb threats, firebombs, explosive materials, or other similar devices as described in subdivisions A 6 and 7 of § 22.1-279.3:1, alcohol or drug use or abuse in or related to the school or institution or in connection with any school or institution activity, or information that an individual poses any credible danger of serious bodily injury or death to one or more students, school personnel, or others on school property shall be immune from all civil liability that might otherwise be incurred or imposed as the result of the making of such a report, investigation, or disclosure.