N.M. Stat. § 57-7-7
Any vendor who in making his statement as contemplated by this act [57-7-1 to 57-7-7 NMSA 1978] or in making any other written statement relative to junk which he either has sold or is trying to sell shall be guilty of a misdemeanor and upon conviction thereof shall be punished by a fine of not less than ten dollars [($10.00)] and costs nor more than one hundred dollars [($100)] and costs, or by imprisonment in the county jail for not less than ten nor more than ninety days, or by both such fine and imprisonment in the discretion of the court.
This act shall not be construed as impairing in anywise the power of cities or incorporated towns in this state to license, tax and to regulate any person, firm or corporation now engaged in, or hereafter engaged in the buying and selling of junk, provided, that such regulations are not inconsistent herewith.
NMS § 57-7-7