N.C. Gen. Stat. § 14-288.10: Frisk of persons during violent disorders; frisk of curfew violators.

(a) Any law-enforcement officer may frisk any person in order to discover any dangerous weapon or substance when he has reasonable grounds to believe that the person is or may become unlawfully involved in an existing riot and when the person is close enough to such riot that he could become immediately involved in the riot. The officer may also at that time inspect for the same purpose the contents of any personal belongings that the person has in his possession.

(b) Any law-enforcement officer may frisk any person he finds violating the provisions of a curfew proclaimed under the authority of G.S. 14-288.12, 14-288.13, 14-288.14, or 14-288.15 or any other applicable statutes or provisions of the common law in order to discover whether the person possesses any dangerous weapon or substance. The officer may also at that time inspect for the same purpose the contents of any personal belongings that the person has in his possession. (1969, c. 869, s. 1.)