A child must not be counted more than once in the school enrollment of a school district in any one school year. A pupil who enrolls in more than one school in any school year must be counted only in the enrollment of the first school which the pupil legally attends for at least thirty-five days during the school year.

A school officer charged with the duty of enrollment who wilfully violates the provisions of this section is guilty of a misdemeanor and, upon conviction, must be fined in the discretion of the court or imprisoned not more than three years, or both.