N.C. Gen. Stat. § 14-354
No person shall be excused from attending, testifying or producing books, papers, contracts, agreements and other documents before any court, or in obedience to the subpoena of any court, having jurisdiction of the crime denounced in G.S. 14-353, on the ground or for the reason that the testimony or evidence, documentary or otherwise, required of him may tend to incriminate him or to subject him to a penalty or to a forfeiture; but no person shall be liable to any suit or prosecution, civil or criminal, for or on account of any transaction, matter or thing concerning which he may testify or produce evidence, documentary or otherwise, before such court or in obedience to its subpoena or in any such case or proceeding: Provided, that no person so testifying or producing any such books, papers, contracts, agreements or other documents shall be exempted from prosecution and punishment for perjury committed in so testifying.
N.C. Gen. Stat. § 14-354