N.C. Gen. Stat. § 8-55
If any justice, judge or magistrate of the General Court of Justice shall have good reason to believe that any person within his jurisdiction has knowledge of the existence and establishment of any faro bank, faro table or other gaming table prohibited by law, or of any place where alcoholic beverages are sold contrary to law, in any town or county within his jurisdiction, such person not being minded to make voluntary information thereof on oath, then it shall be lawful for such justice, magistrate, or judge to issue to the sheriff of the county in which such faro bank, faro table, gaming table, or place where alcoholic beverages are sold contrary to law is supposed to be a subpoena, capias ad testificandum, or other summons in writing, commanding such person to appear immediately before such justice, magistrate, or judge and give evidence on oath as to what he may know touching the existence, establishment and whereabouts of such faro bank, faro table or other gaming table, or place where alcoholic beverages are sold contrary to law, and the name and personal description of the keeper thereof. Such evidence, when obtained, shall be considered and held in law as an information on oath, and the justice, magistrate or judge may thereupon proceed to seize and arrest such keeper and destroy such table, or issue process therefor as provided by law. No person shall be excused, on any prosecution, from testifying touching any unlawful gaming done by himself or others; but no discovery made by the witness upon such examination shall be used against him in any penal or criminal prosecution, and he shall be altogether pardoned of the offenses so done or participated in by him.
N.C. Gen. Stat. § 8-55