{"id":8590,"date":"2026-11-12T09:54:58","date_gmt":"2026-11-12T09:54:58","guid":{"rendered":"https:\/\/elgringolaw.com\/resources\/sexual-assault-lawsuit-new-mexico\/prove-negligent-security-sexual-assault-new-mexico\/"},"modified":"2026-11-13T08:51:13","modified_gmt":"2026-11-13T08:51:13","slug":"prove-negligent-security-sexual-assault-new-mexico","status":"publish","type":"page","link":"https:\/\/elgringolaw.com\/resources\/sexual-assault-lawsuit-new-mexico\/prove-negligent-security-sexual-assault-new-mexico\/","title":{"rendered":"New Mexico Negligent Security Claim: What You Must Prove"},"content":{"rendered":"\n
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Negligent Security \u00b7 New Mexico<\/p>

Hurt Somewhere That Should Have Been Safer? Know What You Must Prove<\/h1>

A plain-language guide to the questions a New Mexico negligent security claim turns on, and how our team can help you sort out your own situation.<\/p>

Request your free, confidential consultation<\/a><\/div>
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By Josh Wood \u00b7 Published November 12, 2026<\/p>\n\n

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If someone you care about was sexually assaulted on someone else’s property, you may be asking whether the owner can be held responsible too. In New Mexico, a negligent security claim generally requires proof of a duty, a breach of that duty, a cause linking the breach to the harm, and damages.<\/p>\n

This guide walks through each of those parts in plain terms. For a broader look at these cases, read our sexual assault claims in New Mexico<\/a> overview.<\/p>\n

What Negligent Security Means When a Sexual Assault Happens on Someone Else’s Property<\/h2>\n

Negligent security is a claim against a property owner for failing to protect people from foreseeable crime. The attacker’s crime and the owner’s conduct are two separate questions. A claim looks at what the owner did, and did not do, before and during the attack.<\/p>\n

New Mexico’s pattern instruction says a landowner must use ordinary care to protect a visitor from harm caused by a third party’s foreseeable conduct. That conduct can be criminal. UJI 13-1320 NMRA<\/a> states the rule in those terms.<\/p>\n

So a criminal attacker does not automatically end the discussion. The owner’s own failure to protect people can still be examined.<\/p>\n\n

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If someone you care about was assaulted on another person's property, you don't have to sort out these questions alone. Our team can talk with you about what happened and what it may mean. Talk it through with our team — the first consultation is free, confidential, and carries no obligation.<\/p>

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The Duty: What a Property Owner Must Do<\/h2>\n

A property owner owes a duty to keep the premises safe for visitors. UJI 13-1309 NMRA<\/a> uses that wording. The duty is measured by ordinary care.<\/p>\n

Ordinary care means the care a reasonably prudent person would use in the same situation. UJI 13-1603 NMRA<\/a> explains that the amount of care grows as the danger that should reasonably be foreseen grows. It also says the court looks at all the surrounding circumstances.<\/p>\n

For a negligent security claim, the type of property matters. So do its layout and how people use it. A dark parking garage, an apartment complex with many entrances, and a hotel hallway each raise different questions about what reasonable protection looks like.<\/p>\n

Foreseeability: Was the Attack a Risk the Owner Should Have Expected?<\/h2>\n

Foreseeability asks whether a crime like this was a risk the owner should have seen coming. It is often the hardest part to prove. Under UJI 13-1320, the duty covers third-party conduct that is foreseeable, so this question sits at the center of the claim.<\/p>\n

Evidence that can bear on foreseeability includes:<\/p>\n