1. A jailer or person who is guilty of willful inhumanity or oppression to any prisoner under the care or custody of the jailer or person shall be punished:
(a) Where the prisoner suffers substantial bodily harm from the inhumanity or oppression, for a category D felony as provided in NRS 193.130.
(b) Where no substantial bodily harm results, for a gross misdemeanor.
2. Whether or not the prisoner suffers substantial bodily harm, any public officer guilty of willful inhumanity is guilty of a malfeasance in office.