Legal analysis: Disability grade appraisal is conducted in a formal judicial appraisal institution, and disability appraisal refers to the appraisal of the degree of disability after injury. The scope of disability appraisal includes traffic accident disability, industrial injury disability, accidental injury disability and combat disability. -In general, judicial departments, such as traffic police, police stations, courts, etc. , according to the relevant admission records provided by the hospital for the corresponding disability identification or entrust a disability identification agency for identification.

Legal basis: Criminal Procedure Law of People's Republic of China (PRC).

Article 146 In order to find out the facts of a case, when it is necessary to solve specialized problems in the case, a person with specialized knowledge shall be appointed to make an appraisal.

Article 147 After conducting an appraisal, an appraiser shall write an appraisal opinion and sign it. If an appraiser intentionally makes a false appraisal, he shall bear legal responsibility.

Article 148 The investigation organ shall inform the criminal suspect and the victim of the expert opinions used as evidence. If a criminal suspect or victim applies, he may make supplementary appraisal or re-appraisal.

Article 149 The time for psychiatric appraisal of a criminal suspect shall not be counted in the time limit for handling a case.