Foreseeability — whether the owner should have anticipated the danger — is often the central question in a negligent security case, and it is proven with evidence rather than assumption. The most powerful evidence is usually a history of crime at or near the property: prior assaults, robberies, or police calls that put the owner on notice of the risk.
Beyond the area's crime history, a property's own records matter a great deal — incident reports, tenant or customer complaints, security assessments, and the decisions the owner made about locks, lighting, cameras, and staffing. Together, these can show that the owner knew of the danger and failed to respond reasonably.
Because this evidence is controlled by the property owner and public agencies and can be lost over time, gathering it quickly is important. A prompt investigation — obtaining police records, preserving any footage, and requesting the property's records — is a key part of building the case.