(a) The Attorney General is authorized to pay any person, from funds appropriated for the North Carolina Department of Justice, for information concerning a violation of this Article, such sum or sums of money as he may find appropriate, without reference to any rewards to which such persons may otherwise be entitled by law.
(b) Moneys expended from appropriations of the North Carolina Department of Justice for the purchase of controlled substances or other substances proscribed by this Article which is subsequently recovered shall be reimbursed to the current appropriation for the Department.
(c) The Attorney General is authorized to direct the advance of funds by the State Treasurer in connection with the enforcement of this Article.