1. Fingerprint identification: If it is a civil dispute, the parties can actively apply to the court to entrust the corresponding judicial identification agency to conduct fingerprint identification. ; If it is a criminal case, the forensic doctor or identification agency of the public security organ will take the initiative to collect relevant fingerprints for identification to identify the criminal suspect in the case.
2. Handwriting appraisal: In general criminal cases, the public security organs will arrange appraisal; if it is a civil dispute that requires appraisal, you can entrust a lawyer to handle the relevant appraisal; individuals can apply for handwriting appraisal at a judicial appraisal institution recognized by the judicial department .