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.