Photograph the route, not just the spot where the person landed.

Record where each foot was placed, the direction and speed of travel, whether a hand held a rail, cart, phone, child, package, or mobility device, the first unexpected contact, loss of balance, efforts to recover, fall direction, body impacts, and final position. Note footwear type and condition, vision, lighting, route familiarity, distractions, assistance, weather, medication, dizziness, and any sudden medical symptom. Do not infer a slip from the landing position or a floor mark without testing alternative mechanics.

Describe and measure the surface: liquid, grease, ice, snow, mud, tracked rain, polish, dust, produce, debris, loose rug, curled mat, broken pavement, height differential, hole, slope, drainage, stair geometry, missing handrail, cord, merchandise, threshold, or other condition. Capture wide and close photographs from the approach, color and contrast, reflections, footprints and wheel tracks, warning placement, leak or spill source, cleanup activity, weather exposure, and changes. Qualified inspection may be needed for friction, slope, code, or engineering questions.

Map cameras along the route and adjoining areas. Preserve native video with system time, identifiers, audit data, and enough pre-event footage to assess origin and duration. Gather photographs, measurements, incident reports, 911 or emergency response, witness contacts, inspection or sweep records, cleaning tasks, weather and leak material, maintenance requests, work orders, repair records, prior similar complaints, employee or contractor assignments, warnings, policies, contracts, access data, and insurer communications.

Define whether an inspection log reflects a route, task completion, exception, or later entry.

Retain footwear and clothing without altering or using them, and document chain of custody. Medical records should establish immediate complaints, examination, imaging, diagnosis, treatment, functional change, prior symptoms, earlier injuries, recommendations, and recovery course. A later diagnosis may be related, aggravated, unrelated, or partly explained by preexisting disease. Treating and qualified experts should address medical causation; an engineer or human-factors reviewer should not cross into medical opinions.

Confirm who possessed and controlled the area and the injured person's legal relationship and purpose. Then ask whether the defendant created the condition, actually knew of it, had reliable evidence of duration or recurrence, or would have discovered it through a reasonable inspection. Wood requires current, nuanced Oklahoma treatment of open-and-obvious questions; Lewis may inform notice analysis within its facts. Neither case should be reduced to a slogan or applied without checking later authority and the actual condition.

Evaluate warnings for placement, timing, visibility, meaning, route, and practical ability to avoid the hazard. Evaluate comparative conduct using the full environment, including merchandise displays, crowds, lighting, expected attention, disability, assistance, and the visitor's knowledge. A person need not stare at the floor, but the evidence may support disputes about observation and choices. The proposed safer alternative should be feasible and connected to the controller, condition, and time available.

Identify the parcel owner, tenant, operator, manager, maintenance and cleaning vendors, and snow or landscaping contractor. Also identify the security provider, product party, and public record source for the event date. Determine which entity owns the cameras, inspection platform, work-order system, weather data, and physical item. A sidewalk, parking route, transit area, school, government building, tribal enterprise, federal site, or contractor-operated public space may require public or sovereign analysis.

Counsel should calendar video and electronic-system retention, cleaning or repair, inspection access, physical-item custody, public records, limitations, public or federal notice, tribal procedure, contract and arbitration, workers' compensation, product claims, insurance, benefits, liens, minority or incapacity, death, preservation, and venue. An incident report, insurer investigation, ongoing treatment, complaint, or promise to retain video should not be assumed to protect a legal period.