Louisiana Incest Law

A.  Incest is the marriage to, or sexual intercourse with, any ascendant or descendant, brother or sister, uncle or niece, aunt or nephew, with knowledge of their relationship.

B.  The relationship must be by consanguinity, but it is immaterial whether the parties to the act are related to one another by the whole or half blood.

C.  This Section shall not apply where one, not a resident of this state at the time of the celebration of his marriage, shall have contracted a marriage lawful at the place of celebration and shall thereafter have removed to this state.

D.(1)  Whoever commits incest, where the crime is between an ascendant and descendant, or between brother and sister, shall be imprisoned at hard labor for not more than fifteen years.

(2)  Whoever commits incest, where the crime is between uncle and niece, or aunt and nephew, shall be fined not more than one thousand dollars, or imprisoned, with or without hard labor, for not more than five years, or both.