On the trial of any person, for having gone on board any vessel without permission from the proper officer, it shall be incumbent upon him to prove that he had received the permission required; in default of his proving this, he shall be considered as having entered without permission, and be found guilty accordingly.
La. R.S. 34:872
Evidence; burden of proof
Official source: Louisiana State Legislature. Reproduced from public-domain Louisiana statutes; confirm against the official source for the current text. Not legal advice.