La. Code Crim. Proc. art. 440
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
A witness who is to testify before the grand jury shall first be sworn by the foreman, in accordance with Article 14, to testify truthfully and to keep secret, except as authorized by law, matters which he learns at the grand jury meeting.
La. Cr.P. § 440