(A) A person who, while under the influence of alcohol, drugs, or the combination of alcohol and drugs, drives a vehicle and when driving does any act forbidden by law or neglects any duty imposed by law in the driving of the vehicle, which act or neglect proximately causes great bodily injury or death to a person other than himself, is guilty of a felony and upon conviction must be punished:

1. (1) by a mandatory fine of not less than five thousand one hundred dollars nor more than ten thousand one hundred dollars and mandatory imprisonment for not less than thirty days nor more than fifteen years when great bodily injury results;

2. (2) by a mandatory fine of not less than ten thousand one hundred dollars nor more than twenty-five thousand one hundred dollars and mandatory imprisonment for not less than one year nor more than twenty-five years when death results.

   A part of the mandatory sentences required to be imposed by this section must not be suspended, and probation must not be granted for any portion.

(B) As used in this section, "great bodily injury" means bodily injury which creates a substantial risk of death or which causes serious, permanent disfigurement, or protracted loss or impairment of the function of any bodily member or organ.

The Department of Motor Vehicles must suspend the driver's license of a person who is convicted or who receives sentence upon a plea of guilty or nolo contendere pursuant to this section for a period to include a term of imprisonment plus three years.