N.C. Gen. Stat. § 15A-266.1

It is the policy of the State to assist federal, State, and local criminal justice and law enforcement agencies in the identification, detection, or exclusion of individuals who are subjects of the investigation or prosecution of felonies or violent crimes against the person. Identification, detection, and exclusion are facilitated by the analysis of biological evidence that is often left by the perpetrator or is recovered from the crime scene. The analysis of biological evidence can also be used to identify missing persons and victims of mass disasters.