N.C. Gen. Stat. § 122C-183
The director of each State facility may appoint as special police officers the number of employees of their respective facilities they consider necessary. Within the grounds of the State facility the employees appointed as special police officers have all the powers of police officers of cities. The Secretary, or the Secretary's designee, may assign these special police officers to other State-operated facilities on a temporary basis to carry out the powers allowed under this section and as otherwise provided by laws relating to the specific joint security force to which they are assigned. Upon this temporary assignment, the special police officer will take the oath in G.S.122C-184 for that specific facility. Following the oath, the police officer has the right to arrest without warrant individuals committing violations of the State law or the ordinances or rules of that facility in their presence and to bring the offenders before a magistrate who shall proceed as in other criminal cases.
N.C. Gen. Stat. § 122C-183