Multi-vehicle accidents, especially those involving four or five cars, often raise complex questions regarding liability and compensation. Understanding the legal framework for determining fault in these scenarios is crucial for all drivers involved. Let's consider two common situations that illustrate the intricacies of such incidents:

First, imagine a scenario where the first vehicle brakes suddenly. Subsequent vehicles fail to maintain a safe speed and distance, leading to a chain reaction where each car hits the one directly in front of it. In this typical rear-end collision sequence, is the trailing vehicle automatically liable for the damages incurred by the vehicle it strikes?

Second, consider a more complex situation: the first vehicle brakes abruptly. The second vehicle manages to stop in time, avoiding a collision. However, the third vehicle fails to brake effectively, forcefully colliding with the second car and pushing it into the first. In this specific case, is the second vehicle liable for damages to the first, or is the third vehicle responsible for damages to both vehicles in front?

Furthermore, if a dashcam is not present in such a scenario, how can the driver of the second vehicle effectively prove their innocence and demonstrate that they were not at fault?