N.C. Gen. Stat. § 55-1-31
The Secretary of State may propound to any corporation, domestic or foreign which he has reason to believe is subject to the provisions of this Chapter, and to any officer or director thereof, such written interrogatories as may be reasonably necessary and proper to enable him to ascertain whether such corporation is subject to the provisions of this Chapter or has complied with all the provisions of this Chapter applicable to it. Subject to applicable jurisdictional requirements, such interrogatories shall be answered within 30 days after the mailing therefor, or within such additional time as shall be fixed by the Secretary of State, and the answers thereto shall be full and complete and shall be made in writing and under oath. If such interrogatories be directed to an individual they shall be answered by him, and if directed to a corporation they shall be answered by the president, vice-president, secretary or assistant secretary thereof. The Secretary of State shall certify to the Attorney General, for such action as the Attorney General may deem appropriate, all interrogatories and answers thereto which disclose a violation of any of the provisions of this Chapter, requiring or permitting action by the Attorney General.
N.C. Gen. Stat. § 55-1-31