司法鉴定是指在诉讼中,人民法院依其职权,或应人民检察院或者被告人的请求,或任何一方当事人的请求,委派具有专门知识、技能或特别经验的人,对案件中涉及的某些专门性问题进行检验、鉴别和判断,从而为诉讼案件的公正裁判提供科学依据而从事的一项诉讼活动。[1]而司法鉴定人就是 Forensic assessment refers to the people’s court in its litigation, in accordance with its powers, or at the request of the people’s procuratorate or the defendant, or the request of either party, to appoint someone with specialized knowledge, skill or special experience to investigate certain cases involved in the case Special issues to test, identify and judge, so as to provide a scientific basis for the fair trial of litigation proceedings to engage in a litigation activity. [1] And forensic people is