N.C. Gen. Stat. § 90-85.12: Executive Director to make investigations and prosecute.

(a) Upon receiving information concerning a violation of this Article that is a threat to the public safety, health, or welfare, the Executive Director shall promptly conduct an investigation, and if he finds evidence of the violation, he may file a complaint and prosecute the offender in a Board hearing. If the Executive Director receives information concerning a violation of this Article that does not pose a threat to the public safety, health, or welfare, the Executive Director may conduct an investigation, and if he finds evidence of the violation, he may file a complaint and prosecute the offender in a Board hearing.

(b) In all prosecutions of unlicensed persons for the violation of any of the provisions of this Article, a certificate signed under oath by the Executive Director shall be competent and admissible evidence in any court of this State that the person is not licensed, as required by law. (1905, c. 108, s. 11; Rev., s. 4477; C.S., s. 6656; 1923, c. 74, s. 1; 1981 (Reg. Sess., 1982), c. 1188, s. 1; 2005-402, s. 1.2.)