A driver remembers entering an intersection and then hearing a paramedic at the window. The missing interval may make it impossible to describe the impact from personal memory. A claim can still be investigated through recordings, witnesses, physical evidence, and medical records. The task is to identify what each source establishes while keeping the missing recollection accurately described.
Seek care for the memory problem first
Tell a clinician promptly about new memory problems after a crash. The CDC includes memory difficulty among possible concussion symptoms and notes that some symptoms appear hours or days later. A memory gap alone does not identify its cause or establish the severity of an injury.
Call 911 or seek emergency care immediately after a head injury for danger signs such as a worsening headache that does not resolve, repeated vomiting, seizures, weakness, slurred speech, increasing confusion, or difficulty waking. The CDC’s guidance also identifies unequal pupil size and inability to recognize people or places. Do not postpone care while collecting claim documents.
Describe the last event you remember before the gap and the first clear event afterward. Tell the treating team about previous memory problems, relevant medications, and any symptoms that preceded the collision. If someone observed you repeatedly asking the same question, ask that person to describe the words, approximate time, and circumstances. Their observation can help the clinician without becoming a diagnosis made by a family member.
Keep three kinds of information distinguishable
Personal recollection, another person’s account, and a record viewed later can all be useful. They should remain identifiable. For example: “I remember stopping at the light. My passenger later told me we were hit from behind. I saw the rear damage in photographs the next morning.” That account makes clear which details the driver remembers directly.
The Model Systems Knowledge Translation Center’s guidance on moderate to severe TBI explains that some people cannot remember the event that caused their injury. Its discussion concerns people with those injuries; it does not establish that everyone with missing crash memories has a moderate or severe TBI. Diagnosis belongs with the treating professionals.
If a recollection changes, record when you first remembered the detail and tell your clinician. Also note whether you had recently watched a video or discussed the crash. Preserve earlier notes instead of replacing them with a cleaner story. A later correction is easier to understand when its source and date are clear.
Use independent evidence to investigate the missing interval
Scroll horizontally to see all columns. Use the arrow keys when the table is focused.
| Unanswered question | Records to seek | What still needs checking |
|---|---|---|
| Where were the vehicles before contact? | Full dashcam footage, nearby cameras, scene photographs, and independent witnesses | Whether the view covers the approach and whether either vehicle moved before photographs were taken |
| Which traffic signal applied? | Video showing the relevant signal, witness positions, and available signal records | A view of another lane’s light or a timing plan alone may not establish the indication at impact. |
| How did the vehicles move during the collision? | Damage photographs, scene measurements, vehicle inspections, and available vehicle data | Whether qualified reconstruction is needed and whether the data correspond to this event |
| What did the injured person say or do immediately afterward? | 911 audio, body-camera footage, ambulance records, and firsthand accounts | Who observed the behavior, when it occurred, and whether a record repeats someone else’s account |
| What did clinicians observe? | Emergency records, assessment findings, discharge instructions, and follow-up notes | Which entries describe reported history and which describe findings during examination |
Request preservation promptly. Identify the collision location, date, approximate time, vehicles, and a reasonable recording window. Save original files when available, together with the source and date obtained. Keep the lead-up and aftermath; a cropped impact clip may omit the traffic movement in dispute. Our Louisiana crash-evidence guide covers the broader collection of vehicle, scene, and loss records.
Compare recording clocks before treating two timestamps as synchronized. A witness’s confident description also deserves a location and line-of-sight check. If several records repeat one driver’s initial account, identify that common source rather than counting the repetitions as separate observations.
Connect the crash evidence and the medical evidence carefully
Louisiana Civil Code article 2315 provides the general basis for damages caused by another person’s fault. The absence of personal crash memories does not supply proof of fault. It makes the other evidence especially important to determining vehicle movement and causation.
Medical records answer additional questions: what injury was identified, what treatment was recommended, and what limitations followed. A reconstruction of a red-light collision cannot establish a diagnosis. Likewise, a diagnosis alone cannot establish which vehicle entered against the signal. Each conclusion needs supporting evidence.
Keep a dated record of specific continuing problems and improvements. Examples include needing reminders for appointments, losing track of instructions, or returning to tasks previously affected. Include the circumstances and discuss concerns with the treating team. Our long-term TBI guide discusses documentation over time, and our Louisiana brain-injury practice page addresses injury and loss evidence.
Prepare an accurate account for interviews
Before discussing the collision, separate what you remember from what you learned later. “I do not remember the impact” is a complete answer when it is accurate. You can identify an existing photograph or a witness without adopting their information as your own memory.
A useful file for review contains the earliest medical records, a short chronology with its sources, witness contacts, and a list of recordings requested or received. Mark unresolved conflicts. That allows the investigation to focus on the missing evidence without asking the injured person to invent the missing seconds.
Editorial & Legal Accuracy Notice (Louisiana)
Sources checked: September 30, 2026.
This article provides general medical and legal information. A new memory problem needs clinical assessment; its cause, the collision sequence, fault, and claimed injury effects depend on individual evidence.