N.C. Gen. Stat. § 75-10
In performing the duty required in G.S. 75-9, the Attorney General shall have power, at any and all times, to require the officers, agents or employees of any such corporation or business, and all other persons having knowledge with respect to the matters and affairs of such corporations or businesses, to submit themselves to examination by him, and produce for his inspection any of the books and papers of any such corporations or businesses, or which are in any way connected with the business thereof; and the Attorney General is hereby given the right to administer oath to any person whom he may desire to examine. He shall also, if it may become necessary, have a right to apply to any justice or judge of the appellate or superior court divisions, after five days' notice of such application, for an order on any such person or corporation he may desire to examine to appear and subject himself or itself to such examination, and disobedience of such order shall constitute contempt, and shall be punishable as in other cases of disobedience of a proper order of such judge.
N.C. Gen. Stat. § 75-10