La. Code Evid. art. 704
Current with operative changes from the 2024 Third Special Legislative Session
Testimony in the form of an opinion or inference otherwise admissible is not to be excluded solely because it embraces an ultimate issue to be decided by the trier of fact. However, in a criminal case, an expert witness shall not express an opinion as to the guilt or innocence of the accused.
La. C.E. § 704