La. Stat. tit. 13 § 5707
Notwithstanding any provision of this Part to the contrary, all necessary or unavoidable expenses, including supplies, incident to the operation and functioning of the Caddo Parish coroner's office, in accordance with a budget approved by the city and the parish governing authorities, shall be paid by the governing authorities of the parish of Caddo and the city of Shreveport when such expenses are certified by the coroner as being necessary or unavoidable. For the purposes of this Section, the parish of Caddo and the city of Shreveport shall each pay their portion of the necessary or unavoidable expenses for the coroner's services on the basis of the percentage of all coroner's services performed on behalf of the parish of Caddo and the city of Shreveport, respectively.
La. R.S. § 13:5707