N.M. Stat. § 29-2-13
A suitable and distinctive uniform shall be prescribed by the secretary. The secretary shall provide and issue to each commissioned officer a uniform and an appropriate badge which shall contain in plain legible letters the words "New Mexico state police". The prescribed uniform and badge shall be worn at all times when on duty, except when by direction of the chief or the governor, any member of the New Mexico state police is assigned to special duties. Uniform allowance and subsistence pay shall be established by the secretary and allowed in addition to a commissioned officer's salary and paid on a monthly basis to each commissioned officer of the division. The uniform allowance and subsistence pay shall be expended only for the purposes allowed and any portion of the uniform allowance or subsistence pay not so spent in each fiscal year shall revert to the general fund.
NMS § 29-2-13