How is fault determined after an accident?
Direct answer
Fault is determined from the available evidence — the police report, witness statements, physical damage, vehicle data, traffic-control timing, and sometimes reconstruction analysis. Each driver’s duties — right-of-way, following distance, signal use, speed — are evaluated against what happened. Fault is not assumed; it is established from the facts.
More detail
In a negotiated claim the parties argue over the allocation; in a lawsuit a judge or jury assigns it. The framework is the same — only the decision-maker differs. Strong evidence developed early tends to drive the outcome, which is why preservation matters.
Related resource
Comparative Fault