La. R.S. 13:2587.3

When a justice of the peace court in St. Tammany Parish has concurrent jurisdiction over a property standards or nuisance violation adopted pursuant to local ordinance, the constable of that court may act as prosecutor if authorized by the court, or the deputy constable if authorized may act as prosecutor if the constable was the arresting officer, issued the citations of summons, or is a witness. If there is no deputy constable, then the justice of the peace may appoint a special deputy constable to prosecute the case or may authorize a constable from another ward in the parish to prosecute the matter.