Abstract: The new criminal procedure law have set up the expert assessor system,but limited its application in the trial period. According to the judicial practice now in china,most of the controversy of criminal appraisal suggestions are focus on the preliminary investigation or the investigation period,so some of the investigation organ have applid this system to the identification procedure in investigation period,and have made good effect.It seems that the expert assessor system only applid in the trial period must have some limitations,but it is necessary and feasible to establish expert assessor system in the identification procedure of the investigation period.So based on the litigation practice,we should make the current expert assessor system more complete,and to make this system more reasonable and feasible in the investigation period.

Key words: font-size: 10.5pt, mso-bidi-font-size: 10.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体" lang="EN-US">criminal procedure, investigation, expert assistant, dispute regarding appraisal

摘要： 新《刑事诉讼法》设立的专家辅助人制度，将其适用范围限定在了庭审阶段。但根据我国目前的司法实践来看，刑事诉讼中的鉴定争议大都集中于初查或侦查阶段，因此部分侦查机关已将该制度应用于侦查阶段的鉴定程序中，并取得了较好的效果。由此看来，仅仅在庭审阶段建立专家辅助人，必然存在较多局限，而侦查阶段的鉴定程序建立专家辅助人制度势必具有必要性与可行性。因此，立法应根据诉讼实践，对目前的专家辅助人制度进行完善，以建立合理可行的侦查阶段专家辅助人制度。

关键词: font-size: 10.5pt, mso-bidi-font-size: 10.0pt, mso-ascii-font-family: 'Times New Roman', mso-hansi-font-family: 'Times New Roman', mso-bidi-font-family: 'Times New Roman', mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">刑事诉讼；侦查；专家辅助人；鉴定争议