(a) The department may make summaries, compilations, photographs, duplications, or reproductions of records, reports, or transcripts of them which it considers advisable for the effective and economical preservation of the information contained in them.
(b) The summaries, compilations, photographs, duplications, or reproductions, duly authenticated, are admissible in a proceeding under this chapter, including a court action, if the original records would be admissible.
(c) The department may provide by regulation for the destruction, after a reasonable period, of records, reports, transcripts, other papers in its custody, or reproductions of them, when their preservation is no longer necessary for a purpose necessary to the administration of this chapter.