La. Navigation and Shipping § 34:851.29
It shall be the duty and responsibility of every wildlife agent and peace officer of this state and its subdivisions to enforce the provisions of this Part, and in the exercise thereof, they are hereby authorized to stop and board any vessel for the purpose of addressing inquiries to those on board, requiring appropriate proof of identification therefrom, examining the certificate of numbers issued under this Part or in the absence of such certificate requiring appropriate proof of identification of the owner or operator of the vessel, and in addition, examining such vessel for compliance with this Part. Officers so boarding any vessel shall first identify themselves and such officer in the performance of his duties shall be without liability for trespass.
La. Navigation and Shipping § 34:851.29