Abstract: The course of "biological trace evidence test" is a practical interdisciplinary course. It integrates the relevant knowledge of inspecting and testing of animals and plants trace evidence into the traditional human biological evidence technology, including forensics, zoology, plant science, biochemistry, molecular biology, immunology and other multidisciplinary content. The course is mainly established for criminal technology specialty in forest police colleges and universities. Considering learners′ biological knowledge is lacking, it is difficult to improve students′ subjective initiative only by class lecturing. Therefore, combining the professional characteristics of forest public security, we make full use of a large amount of practical cases of wildlife trace evidence in forensic center of forest police located at our school. Through case studying, simulation on-site teaching and student-assistant testing to create a good heuristic and interactive practice teaching system, we help students to stimulate interest in the study of biological trace evidence to improve teaching effectiveness.

Key words: biological trace evidence, practice teaching, case studying