Louisiana Code of Criminal Procedure Tit. XXVI, Art. 762. Place of sessions of court

(1) To take the testimony of witnesses who are so incapacitated that they cannot attend the trial in the parish courthouse;

(2) To allow the jury or judge to view the place where the crime or any material part thereof is alleged to have occurred, or to view an object which is admissible in evidence but which is difficult to produce in court. At this view, the court shall not permit the taking of evidence except in connection with the place or object; or

(3) When the courthouse in which the sessions are usually held is unsuitable for use, or there is no courthouse.