First, in the process of criminal proceedings, if the actor has doubts about some professional issues, he can apply for judicial expertise. Because the result of judicial expertise will affect the result of criminal proceedings to a certain extent, the actor should go to a qualified institution for judicial expertise according to law. You don't have to have a lawyer. Two. General rules for judicial authentication Article 11 A judicial authentication institution shall uniformly accept the entrustment of judicial authentication by the case-handling organ. Article 12 Where a client entrusts an appraisal, it shall provide authentic, complete and sufficient appraisal materials to the judicial appraisal institution, and shall be responsible for the authenticity and legality of the appraisal materials. The judicial authentication institution shall check and record the name, type, quantity, characteristics, preservation status and receiving time of the authentication materials. If a party has any objection to the appraisal materials, it shall submit it to the client. The identification materials mentioned in these General Rules include biological samples and non-biological samples, control sample materials and other identification materials related to identification matters.
Legal objectivity:
Article 11 A judicial authentication institution shall uniformly accept the entrustment of judicial authentication by the case-handling organ. Article 12 Where a client entrusts an appraisal, it shall provide authentic, complete and sufficient appraisal materials to the judicial appraisal institution, and shall be responsible for the authenticity and legality of the appraisal materials. The judicial authentication institution shall check and record the name, type, quantity, characteristics, preservation status and receiving time of the authentication materials. If a party has any objection to the appraisal materials, it shall submit it to the client.