North carolina constitution
Article V
Section 6

(2) Retirement funds. Neither the General Assembly nor any public officer, employee, or agency shall use or authorize to be used any part of the funds of the Teachers' and State Employees' Retirement System or the Local Governmental Employees' Retirement System for any purpose other than retirement system benefits and purposes, administrative expenses, and refunds; except that retirement system funds may be invested as authorized by law, subject to the investment limitation that the funds of the Teachers' and State Employees' Retirement System and the Local Governmental Employees' Retirement System shall not be applied, diverted, loaned to, or used by the State, any State agency, State officer, public officer, or public employee.