NM POST cheat sheet

New Mexico has no death penalty; the maximum statutory penalty for first-degree murder is life imprisonment without the possibility of parole (NMSA 31-18-14 through 31-21-10.1).

New Mexico Constitution Article II, Section 10 bars unreasonable searches and seizures; New Mexico courts have interpreted it to provide broader protection than the Fourth Amendment in some contexts, including automobile searches.

NMSA 30-2-1 defines first-degree murder as a willful, deliberate and premeditated killing, or felony murder in the commission of a listed felony; second-degree murder is any other murder.

New Mexico's exclusionary rule is codified at NMSA 30-15-1; it applies to evidence obtained by unconstitutional search or seizure in state prosecutions.

Juvenile jurisdiction in New Mexico begins at age 15 and extends to 17 for delinquency under the Delinquency Act (NMSA Chapter 32A); children under 15 fall under the Family in Need of Court Supervision provisions.

A warrantless arrest requires probable cause; misdemeanor arrests generally require the offense to have occurred in the officer's presence (NMSA 3-8-1 and common law), while felonies may be arrested on probable cause.

New Mexico's Uniform Arrest Act (NMSA 30-1-1 et seq.) authorizes arrest by a peace officer with probable cause for any felony or misdemeanor committed in the officer's presence, and for felonies not in the officer's presence.

Miranda warnings must precede custodial interrogation; New Mexico requires officers to honor the right to counsel and to remain silent, and questioning must cease when either is invoked.

New Mexico's implied consent statute (NMSA 66-8-107) provides that a driver is deemed to consent to chemical testing; refusal results in license revocation and may be used at trial.

New Mexico's basic speed rule (NMSA 66-7-301) requires driving at a speed reasonable and prudent for conditions; posted limits are presumptive, not absolute.

Statutory speed limits in New Mexico: 15 mph in school zones, 30 mph in business or residential districts unless posted otherwise, and 75 mph on rural interstates where posted.

Reasonable suspicion of a traffic violation justifies a stop; the stop must be no longer than necessary to address the violation, and unrelated inquiries require independent reasonable suspicion.

New Mexico's DWI statute (NMSA 66-8-102) prohibits driving with a blood alcohol concentration of 0.08 or higher (0.02 for drivers under 21, 0.04 for commercial drivers).

New Mexico uses the Implied Consent Act and the 20-minute deprivation period: after arrest, the officer must advise the arrestee of the consequences of refusal and allow at least 20 minutes to contact counsel before testing.

Field sobriety testing must follow standardized NHTSA protocols (HGN, walk-and-turn, one-leg stand) to support probable cause for arrest.

New Mexico's Move Over Law (NMSA 66-7-332.1) requires drivers approaching a stationary authorized emergency vehicle with flashing lights to slow down and, if safe, move to a non-adjacent lane.

Officers may conduct a protective sweep of the passenger compartment for weapons when there is reasonable suspicion the suspect is dangerous and may gain immediate access to a weapon (Michigan v. Long).

Traffic stop documentation should record the violation observed, the basis for reasonable suspicion, duration of the stop, and any consent obtained.

Chain of custody requires documenting every transfer of evidence: collector, date, time, location, description, and each subsequent handler, to establish authenticity at trial.

Physical evidence should be packaged in breathable containers when wet, sealed with evidence tape, initialed and dated across the seal, and stored in a secure, temperature-controlled evidence room.

Biological evidence should be air-dried, packaged in paper, and refrigerated; avoid plastic to prevent degradation and mold.

New Mexico's crime laboratory system handles forensic analysis; officers should submit evidence with a completed request form specifying the tests needed and the case number.

Photograph the scene before altering it; use overall, mid-range, and close-up photographs with a scale, and log each photograph in a photo log.

Sketches should include measurements from fixed reference points and a legend indicating orientation; note the date, time, and investigator.

Interviews and Miranda: custodial interrogation requires warnings; non-custodial questioning does not, but voluntariness is always required.

Search warrants in New Mexico must be supported by affidavit establishing probable cause, describe the place to be searched and items to be seized with particularity, and be executed within 10 days.

Digital evidence should be preserved with hash values, write-blocked during analysis, and documented in a chain-of-custody log to support admissibility.

Graham v. Connor (1989) sets the objective reasonableness standard for force, judged from the perspective of a reasonable officer on the scene, without hindsight.

Factors under Graham: severity of the crime, whether the suspect poses an immediate threat, and whether the suspect is actively resisting or attempting to evade arrest.

Tennessee v. Garner (1985) prohibits deadly force to prevent escape of a fleeing suspect unless the officer has probable cause the suspect poses a significant threat of death or serious physical injury.

New Mexico law (NMSA 30-2-6) justifies use of force in self-defense or defense of another when the officer reasonably believes force is necessary to prevent imminent harm.

Deadly force is force likely to cause death or serious bodily injury; it includes firearm discharges and intentional strikes to the head or neck.

Duty to intervene: officers must intervene when they observe another officer using excessive force and report the incident to a supervisor.

De-escalation: use time, distance, cover, and communication to reduce the need for force before resorting to higher levels.

Post-force: render aid, request medical assistance, notify a supervisor, and document the force in a use-of-force report as soon as practicable.

Officer safety: maintain reactionary gap, use cover and concealment, and communicate with dispatch and backup before contact when feasible.

Brady v. Maryland (1963) requires disclosure of exculpatory evidence to the defense; Giglio v. United States extends this to impeachment material, including officer credibility issues.

New Mexico's Law Enforcement Code of Ethics requires officers to serve the public, protect lives and property, and uphold the Constitution, treating all persons with dignity.

Bias-free policing prohibits stops or enforcement based on race, ethnicity, religion, gender, or national origin; reasonable suspicion must be based on specific, articulable facts.

Use of discretion must be consistent and documented; selective enforcement undermines public trust and may violate equal protection.

Truthfulness in reports and testimony is a core ethical obligation; false statements can result in decertification under New Mexico's Law Enforcement Training and Certification rules.

Conflicts of interest must be disclosed; officers should not participate in investigations involving family, close friends, or financial interest.

Gratuities and gifts of value should be declined or reported per agency policy; acceptance may create an appearance of impropriety.

Constitutional policing requires that stops, searches, and arrests be supported by reasonable suspicion or probable cause, and that rights be honored regardless of the person's status.

A complete incident report includes: who, what, when, where, why, how; the reporting officer's name and badge number; the case number; and the disposition.

Reports should be written in the first person, past tense, chronologically, using objective language and avoiding conclusory statements without supporting facts.

Document the basis for every search and seizure: consent (verbal or written), warrant number, exigency, or incident to arrest.

Evidence collection in reports: list each item, its description, location found, and the chain-of-custody entry.

Reports are public records subject to the New Mexico Inspection of Public Records Act (NMSA 14-2-1 et seq.), with statutory exceptions for active investigations and protected information.

Court testimony: review reports and evidence before testifying; answer only the question asked; do not guess; if you do not know, say so.

Testimony should be factual and consistent with the report; discrepancies must be explained, not hidden.

Prepare for cross-examination by anticipating challenges to probable cause, chain of custody, and use-of-force justifications.

Preserve notes and recordings; destruction of notes after report completion may violate discovery obligations and undermine credibility.