La. Stat. tit. 13 § 2563.12
The executive officer of the court shall be the sheriff of the parish of Ascension. All writs and processes in civil matters issued by the court, and writs and processes in criminal matters issued by the court which require service outside the territorial limits of the municipalities of Donaldsonville, Gonzales or Sorrento, shall be served by the sheriff or his deputy. The sheriff for such service shall receive the fees provided by law, applicable to the Twenty-Third Judicial District Court. Writs and processes in criminal matters issued by the court which require service within the territorial limits of the municipalities of Donaldsonville, Gonzales or Sorrento shall be served by the chief law enforcement officer or his assistant of the particular municipality wherein service is required. The fees for such service shall be the same as the fees provided by law applicable to the Twenty-Third Judicial District Court, and such fees shall be paid into the general fund of the municipality wherein service is required to be made.
La. R.S. § 13:2563.12