Part of article 340 of the Penal Code states that "he who discovers his wife or one of his female relatives committing adultery and kills, wounds, or injures one of them, is exempted from any penalty."

Article 548 states that "He who catches his wife or one of his ascendants, descendants or sister committing adultery (flagrante delicto) or illegitimate sexual acts with another and he killed or injured one or both of them benefits from an exemption of penalty."