What does criminal science and technology include?

Criminal science and technology is an important part of public security forensic medicine in China, and its branches include: trace inspection, document inspection, audio-visual technology, criminal laboratory, forensic examination, police dog technology, psychological test, biological evidence and electronic evidence.

Criminal science and technology mainly uses the principle of material transfer and exchange, species identification and the same identification principle to complete the identification, inspection and identification of material evidence.

The major of criminal science and technology trains high-level professionals with knowledge and ability in trace inspection, document identification, trace material evidence analysis, public security imaging technology, etc., who can engage in criminal technical identification in public security and judicial departments.

It can be summarized into two categories: one is invisible and reflects the regular characteristics of internal contradictions in criminal proceedings. One is tangible, which is customarily called physical evidence. As long as the objective objects or substances involved in criminal activities may become physical evidence.

Extended data:

Current situation of criminal science and technology development

Modern criminal science and technology apply molecular biology, life science, new materials and DNA technology, biochemical technology and nanotechnology, forming a brand-new platform for applied disciplines. The discovery and extraction technology of physical evidence has developed from constant to micro and ultra-micro, the analysis and testing technology has developed to molecular level, and the accuracy is getting higher and higher. The whole detection, recording and analysis process has developed from manual and semi-automatic to full automation.

The inspection and appraisal has changed from qualitative to qualitative and quantitative requirements, and the inspection conclusion has changed from the concept of empirical judgment to statistical data induction, which greatly enhances the objective credibility. The organic combination of technology and equipment, computer and its network technology, multimedia technology and other applications makes criminal science and technology a technology-intensive technical system.

Baidu Encyclopedia-Criminal Science and Technology