Legal basis:
"Road Traffic Safety Law of the People's Republic of China" Article 72 After receiving the traffic accident alarm, the traffic administrative department of the public security organ shall immediately send traffic police to the scene, organize rescue for the injured first, 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.
"Provisions on Procedures for Handling Road Traffic Accidents" Article 58 Within five days from the date of confirmation of the inspection report and appraisal opinions, the traffic administrative department of the public security organ shall notify the parties to collect the detained accident vehicles. The expenses incurred by detaining the vehicle shall be borne by the traffic administrative department of the public security organ that made the decision. However, if the traffic administrative department of the public security organ notifies the parties to collect it, the parking fees incurred by failing to collect it within the time limit shall be borne by the parties themselves. If the vehicle has not been collected after 30 days' notice and 3 months' notice, the vehicle will be detained according to law.