The fourth assistant district attorney shall receive as compensation for his services as such officer, in addition to the annual salary paid by the state, an annual salary of four thousand six hundred fifty dollars, payable monthly on his own warrant. Such additional salary shall be paid by the parishes composing said judicial district, as follows: the parish of Tangipahoa shall pay the sum of two thousand one hundred dollars; the parish of St. Helena, the sum of nine hundred fifteen dollars, and the parish of Livingston, the sum of one thousand six hundred thirty-five dollars.
La. R.S. § 16:463