Which agency has statewide jurisdiction in North Carolina?

The North Carolina State Highway Patrol is the agency that has statewide jurisdiction in North Carolina. This means they have the authority to enforce laws and regulations across the entire state, not limited to any specific locality or area. Unlike local sheriff's departments or city police departments, which have jurisdiction restricted to their respective counties or municipalities, the State Highway Patrol operates under the North Carolina Department of Public Safety and is tasked primarily with enforcing traffic laws and ensuring safety on the state's roadways, as well as responding to incidents that occur on interstates and highways.

Private security forces do not have law enforcement authority and operate on a contractual basis, lacking any governmental jurisdiction. Thus, the North Carolina State Highway Patrol stands out as the only agency listed that possesses the capability to enforce laws throughout the entire state, making it the correct choice in this context.