A. The district attorney of the Twenty-Fifth Judicial District shall receive, in addition to the salary paid him by the state, an additional annual salary of not less than fifteen thousand dollars, payable monthly on his own warrant by the governing authority of the parish of Plaquemines. This additional salary shall not be reduced after it has been in effect for a period of at least six months.
B. The governing authority of the parish of Plaquemines shall annually, at the time it prepares its general budget, budget an amount sufficient to pay the salary provided herein. Any salary increase as permitted herein by the governing authority for the parish of Plaquemines shall not be reduced once the same has been in effect for six months.