Criminal technique is the general term for the various measures and methods that are applied to criminal investigation, including such distinct specialties as trace expertise, documentary inspection, forensic physician, criminal chemical inspection, photography related to criminal investigation, etc. 刑事技术是刑事侦查工作中所应用的各种技术手段和方法的总称,分为痕迹检验、刑事影像技术、文件检验、法医、刑事化验等不同的专业方向。