(a) "Private records," as used in this section, means all records of a permittee, licensee, or other person other than the name, proposed location, and type of permit or license sought in an application for an original or renewal permit or license, or in a periodic report relating to the importation, distribution, or sale of alcoholic beverages required by the commission to be regularly filed by a permittee or licensee.
(b) The private records of a permittee, licensee, or other person that are required or obtained by the commission or its agents, in connection with an investigation or otherwise, are privileged unless introduced in evidence in a hearing before the commission or before a court in this state or the United States.