N.M. Stat. § 29-2-8
New Mexico state police; commissioned officers;
examination.
The New Mexico state police shall conduct a written examination of all applicants for
the position of commissioned officer for the purpose of determining their mental
qualifications and knowledge of the laws of New Mexico and their ability to render
assistance in case of accidents upon the public highways. No applicant shall be
appointed a member of the New Mexico state police, other than the chief, until the
applicant has passed the written examination with a grade of not less than seventy-two
percent. This section shall not apply to officers who are certified and commissioned as
of June 30, 2015 in the former motor transportation division or the former special
investigations division.