Legal basis: Article 49 of the Procedures for Handling Road Traffic Accidents requires inspection and appraisal, and the traffic administrative department of the public security organ shall, in accordance with relevant regulations, entrust a qualified appraisal institution to conduct inspection and appraisal within three days from the end of the accident site investigation. Autopsy shall be entrusted within three days from the date of death. The inspection and appraisal of the hit-and-run vehicle shall be entrusted within three days from the date of seizure of the suspected vehicle. If inspection and appraisal are needed within three days after the on-site investigation, it shall be reported to the traffic management department of the public security organ at the next higher level for approval. The appraisal of mental illness shall be carried out by an appraisal institution with the qualification of mental illness appraisal.