La. R.S. 16:227

The third assistant district attorney for the Ninth Judicial District shall receive as compensation for his services, in addition to the annual salary paid him by the state, an annual salary of not less than five thousand two hundred fifty dollars, as established from time to time by the governing authority of the parish of Rapides, the amount so established to be payable monthly on his own warrant by said parish. Any salary increase authorized as provided herein by the governing authority of the parish of Rapides which remains in effect for a period of six months as to any particular assistant shall not be reduced thereafter.