Prove the missing attention, not merely the presence of a phone.

The timeline should begin before impact. Identify lane position, traffic controls, lead vehicles, hazards, visibility, and the moment a prudent driver could first perceive the conflict. Then compare steering, braking, throttle, horn, and evasive movement. A late brake application or unchanged speed may support inattention, but it can also reflect obstruction, mechanical limits, mistaken perception, or missing data. Reconstruction should test the alternatives rather than assume a cause from a single mark.

Device activity is only one category. Texting, social media, a call, navigation entry, music selection, a mounted delivery application, work dispatch, food, grooming, reaching, a child, another passenger, or an event outside the vehicle can divide attention. Each activity leaves different evidence. A witness who saw the driver's head down, a video reflection, an application log, or an infotainment event may be more specific than a carrier billing record.

The driver's first account matters because it may identify an alert, destination, passenger, or work task before memories and litigation positions harden. Body-camera video, emergency calls, crash-report supplements, messages sent immediately afterward, and photographs of the cabin can preserve that context. An admission should be quoted accurately and tested against other evidence; an apology or statement of surprise is not necessarily an admission of legal fault.

Wireless carrier records may show that a call or conventional message transaction occurred near a time, but time zones, network processing, shared plans, internet messaging, background data, and hands-free use complicate interpretation. The subscriber may not be the driver, and the absence of a carrier entry does not rule out device activity. The request period should be justified by the event timeline and paired with evidence identifying the driver and device.

The handset and applications may contain notifications, screen-time information, location history, message content, photographs, navigation, or app-specific logs. Access raises privacy and proportionality concerns, particularly when unrelated personal or privileged material is present. Preservation can be requested without claiming immediate entitlement to a complete forensic image. A protocol may need to define custodian, date range, categories, search method, neutral examiner, privilege handling, and authentication.

Vehicle information can include event data, infotainment pairing, hands-free call history, navigation destinations, driver-assistance alerts, dash video, and telematics. Part 563 addresses certain event data recorders in covered light vehicles; it is not a universal rule for all vehicles or infotainment. The make, model, year, installed systems, owner, extraction tool, software version, and chain of custody should be recorded before interpreting an output.

Oklahoma law addresses attention and specified electronic communications. Check the exact text, exceptions, vehicle status, conduct, and crash date. A statute may frame duty or evidence, but civil effect depends on Oklahoma law, theory, protected interest, causation, and forum. Other conduct may still violate ordinary care.

Causation requires timing. Earlier device activity may be unrelated; activity during perception and response needs interpretation. Compare available time and distance without the distraction using road geometry, speed, perception, braking, and sequence. An expert may be needed for complex data, impacts, or visibility.

Employer responsibility is separate. A company phone, work call, delivery app, route, visit, or paid trip may bear on employment scope or direct negligence but is not conclusive. Review agency, control, trip purpose, policies, training, records, and Oklahoma law before attributing the crash to an employer or practice.

The medical chronology should document the initial symptoms, objective findings, treatment decisions, restrictions, missed work, and later function. Soft-tissue, brain, spine, and orthopedic allegations require the same accuracy as any other crash. Vehicle damage and delta-v can inform mechanism but should not be used as a substitute for qualified medical opinion or the injured person's actual records.

Coverage review should include the at-fault vehicle and driver, permissive-use issues, household and employer policies, commercial or delivery use, umbrella coverage, and the injured person's uninsured or underinsured motorist protection. A personal policy may raise an exclusion if the driver was transporting passengers or goods for compensation. The issued policy, endorsements, app status, and work arrangement control; an insurer's first coverage position is not the final legal analysis.

Comparative negligence can arise from speed, following distance, signal compliance, seat-belt evidence, or another participant's conduct. It should not be accepted because the distracted driver alleges that the other person could have avoided the crash. Each alleged act needs legal relevance and causal proof. Damages should be supported independently so that a dramatic distraction allegation does not become a substitute for careful valuation.