(a) As used in this section, unless the context otherwise requires, “DNA analysis” means the process through which deoxyribonucleic acid (DNA) in a human biological specimen is analyzed and compared with DNA from another biological specimen for identification purposes.

(b)

(1) In any civil or criminal trial, hearing or proceeding, the results of DNA analysis, as defined in subsection (a), are admissible in evidence without antecedent expert testimony that DNA analysis provides a trustworthy and reliable method of identifying characteristics in an individual's genetic material upon a showing that the offered testimony meets the standards of admissibility set forth in the Tennessee Rules of Evidence.

(2) Nothing in this section shall be construed as prohibiting any party in a civil or criminal trial from offering proof that DNA analysis does not provide a trustworthy and reliable method of identifying characteristics in an individual's genetic material, nor shall it prohibit a party from cross-examining the other party's expert as to the lack of trustworthiness and reliability of such analysis.

(c) In any civil or criminal trial, hearing or proceeding, statistical population frequency evidence, based on genetic or blood test results, is admissible in evidence to demonstrate the fraction of the population that would have the same combination of genetic markers as was found in a specific biological specimen. For purposes of this subsection (c), “genetic marker” means the various blood types or DNA types that an individual may possess.