How to judge whether a motorcycle is riding in an accident?

What is the criterion for judging whether a motorcycle hits a bicycle?

1.

The client violated the rules. That is, the parties to a traffic accident have violated road traffic laws and regulations, which is also commonly known as illegal behavior. If there is no violation, it is not a traffic accident.

2.

There is a causal relationship between illegal acts and damage results. If there is a causal relationship between traffic violations and traffic accidents, they shall bear corresponding traffic accident responsibilities. If the parties have no illegal acts or have illegal acts, but there is no causal relationship between the illegal acts and traffic accidents, they shall not bear the responsibility for traffic accidents.

3.

The role of the illegal behavior of the parties in traffic accidents determines the responsibility of the parties in traffic accidents.