After a vehicle collision, the scene can hold key evidence about how the incident occurred. This is especially important where there is injury, major damage or a dispute over responsibility.

What a Forensic Collision Investigator Does

A forensic collision investigator examines road traffic collisions using physical evidence, technical knowledge and witness accounts. Their aim is to recreate the sequence of events.

Examining the Evidence

The investigation often begins with a careful inspection of the location. Photographs are taken before the road is cleaned, reopened or altered, giving investigators evidence they can return to later.

They may gather vehicle fragments, tyre marks, debris and damage evidence. Statements may also be taken from people involved in the crash and those who saw it happen.

Where appropriate, DNA or other forensic evidence may be used to help confirm the occupants of the vehicles at the time of the collision.

Reconstructing the Incident

Using the evidence collected, the investigator can produce a reconstruction of the crash. This may involve specialist software to test whether the evidence supports the statements made about the incident.

If an account does not match the physical evidence, the reconstruction can help show why that version of events may not be accurate.

How the Findings Can Be Used

A forensic collision report can help with claims made through an insurer by setting out the likely cause of the collision. It can also support legal proceedings where there is a disagreement about responsibility.

These investigations can also reveal road conditions or external factors, such as faulty street lights, unclear markings or road defects. Identifying these problems can help reduce the chance of further collisions.

Summary

Forensic collision investigators help explain how and why a road traffic collision happened. Their work can be useful for insurance matters, court cases and road safety reviews.

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