La. R.S. 14 §32.1. defines Vehicular Homicide to be the killing of a human being caused proximately or caused directly by an offender engaged in the operation of, or in actual physical control of, any motor vehicle, aircraft, watercraft, or other means of conveyance, whether or not the offender had the intent to cause death or great bodily harm, whenever any of the following conditions exists and such condition was a contributing factor to the killing:
(1) The operator is under the influence of alcoholic beverages as determined by chemical tests administered under the provisions of R.S. 32:662.
(2) The operator's blood alcohol concentration is 0.08 percent or more by weight based upon grams of alcohol per one hundred cubic centimeters of blood.
(3) The operator is under the influence of any controlled dangerous substance listed in Schedule I, II, III, IV, or V as set forth in R.S. 40:964.
(4) The operator is under the influence of alcoholic beverages.
(5)(a) The operator is under the influence of a combination of alcohol and one or more drugs which are not controlled dangerous substances and which are legally obtainable with or without a prescription.
(b) It shall be an affirmative defense to any charge under this Paragraph pursuant to this Section that the label on the container of the prescription drug or the manufacturer's package of the drug does not contain a warning against combining the medication with alcohol.
(6) The operator is under the influence of one or more drugs which are not controlled dangerous substances and which are legally obtainable with or without a prescription and the influence is caused by the operator knowingly consuming quantities of the drug or drugs which substantially exceed the dosage prescribed by the physician or the dosage recommended by the manufacturer of the drug.
(7) The operator's blood has any detectable amount of any controlled dangerous substance listed in Schedule I, II, III, or IV as set forth in R.S. 40:964, or a metabolite of such controlled dangerous substance, that has not been medically ordered or prescribed for the individual.
B. Whoever commits the crime of vehicular homicide shall be fined not less than two thousand dollars nor more than fifteen thousand dollars and shall be imprisoned with or without hard labor for not less than five years nor more than thirty years.
On the other hand, Negligent Homicide is defined in La. R. S. 14§32. as either of the following: (1) The killing of a human being by criminal negligence; or, (2) The killing of a human being by a dog or other animal when the owner is reckless and criminally negligent in confining or restraining the dog or other animal. The penalties in negligent homicide contemplate blood alcohol concentration, but no "level" is necessary for the more severe sentence. The violation of a statute or ordinance shall be considered only as presumptive evidence of such negligence.