New Mexico Constitution Art. X, § 1. Salaries and fees of county officers

The legislature shall at its first session classify the counties and fix salaries for all county officers, which shall also apply to those elected at the first election under this constitution. And no county officer shall receive to his own use any fees or emoluments other than the annual salary provided by law, and all fees earned by any officer shall be by him collected and paid into the treasury of the county.