The Burden of Proof in Personal Injury Claims
Most people have heard the term: "proof beyond a reasonable doubt". That is NOT the burden that applies in civil claims for compensation; it is the burden that applies to criminal prosecutions.
In a personal injury compensation claim you bear the burden of proof: "on the balance of probabilities". In other words, is more likely than not that the other driver was negligent and that the negligence caused your injuries.
The easiest way to think about this is to consider a pair of scales. All the evidence FOR your claim is placed on one side of the scale. All the evidence AGAINST your claim is placed on the other side of the scale.
As long as the scales tip to the side FOR your claim, even a little bit, then you have met the burden of proof on the balance of probabilities.