Louisiana Code of Evidence Art. 405. Methods of proving character

A. Reputation. Except as provided in Article 412, in all cases in which evidence of character or a trait of character of a person is admissible, proof may be made by testimony as to general reputation only. On cross-examination of the character witness, inquiry is allowable into relevant specific instances of conduct.

B. Specific instances of conduct. In cases in which character or a trait of character of a person is an essential element of a charge, claim, or defense, such as in a prosecution for defamation or when there is a defense of entrapment, proof may also be made of specific instances of his conduct.

C. Foundation. Before a person may be permitted to testify to the reputation of another person, a foundation must be established that the witness is familiar with that reputation.