For injury appraisal, the following personnel need to sign: If appraisal materials are extracted on-site, the person designated or entrusted by the client shall be present to witness and sign the extraction record. When conducting a physical examination on a person without capacity for civil conduct or a person with limited capacity for civil conduct, a witness is required, and the witness present at the scene shall sign the appraisal record. During the appraisal process, if there are complex, difficult, or special technical issues that are difficult for the appraisal agency to solve, it may consult experts in relevant professional fields outside the agency. The experts who provide consulting opinions shall sign and store them in the appraisal file. After the judicial appraiser completes the appraisal, the judicial authority shall arrange for a review. After the reviewer completes the review, he shall submit a review opinion and sign his/her signature. Legal Basis "General Principles of Forensic Identification Procedures" Article 41 After the judicial identification opinion is issued, if any of the following situations are found, the judicial identification institution may make corrections: (1) The images, spectra, and tables are not clear; (2) ) The signature, seal or number does not meet the production requirements; (3) The written expression has flaws or typos, but it does not affect the judicial appraisal opinion. Supplements and corrections shall be made to the original judicial appraisal opinion, and shall be signed by at least one judicial expert on the supplementary and corrected opinions. If necessary, an amendment can be issued. Supplements and corrections to the judicial appraisal opinion shall not change the original meaning of the judicial appraisal opinion.