1. If the rear car collides with the moving front car, the rear car will take full responsibility;

2. If the front vehicle has no taillights at night, the front vehicle shall bear the secondary responsibility for the accident, and the rear vehicle shall bear the primary responsibility for the accident;

3. If the front vehicle fails to turn on the danger warning flash and set the warning sign according to the regulations after parking on the road, the front vehicle shall bear the secondary responsibility for the accident, and the rear vehicle shall bear the primary responsibility for the accident;

4. If the front vehicle turns on the danger warning flash and sets the warning sign according to the regulations after parking on the road, the rear vehicle will take full responsibility for the accident after reversing and hitting people.

Legal basis: Article 72 of the Road Traffic Safety Law of the People's Republic of China

After receiving the traffic accident alarm, the traffic management department of the public security organ shall immediately send traffic police to the scene, first organize the rescue of the injured and take measures to restore traffic as soon as possible.

The traffic police shall conduct an inquest and inspection on the scene of the traffic accident and collect evidence; Due to the need of collecting evidence, the accident vehicle may be detained, but it shall be properly kept for verification.

The traffic administrative department of the public security organ shall entrust a specialized agency to conduct a professional inspection of the physical and mental condition of the parties. The appraisal conclusion shall be signed by the appraiser.

Article 73

The traffic administrative department of the public security organ shall, according to the on-site inspection, inspection, investigation and relevant inspection and appraisal conclusions of the traffic accident, make a traffic accident identification in time as evidence for handling the traffic accident.