The driver of a vehicle who makes an illegal or improper turn will typically be found to be at fault if their actions caused the accident, as there are laws that mandate proper turning techniques. For example, left-turning drivers must yield to oncoming traffic.
There are a few situations where an improper turn can be reconsidered or dismissed in court – for example, if the driver performed the maneuver to avoid another accident they didn’t cause. Third-party witnesses at the scene of the crash are extremely important, in this instance, so we can prove where the liability should rest if no cameras or other data from the vehicles are present.
On the other hand, if your accident could have been avoided, then the court will most likely still rest liability with the at-fault driver. Distracted driving, for example, is a preventable cause of many of these types of accidents.