法医物证掌是法医学的一门分支学科,是运用医学、生物学和其它自然科学的理论与技术研究并解决与法律有关的生物学检材的法医学鉴定的一门科学。法医学物证检验应当是对与案件有关的法医学物证(人体组织器官、分泌物、排泄物如血液、血痕、精液、精斑、唾液斑、阴道分泌物、尿斑、粪便、羊水、恶露、乳汁斑及毛发、骨骼、牙齿等生物学检材)进行检验鉴定,以判断它们在该案件中能否作为肯定或否定的依据。其检验方法包括形态学、化学及生物化学、免疫化学、免疫血清学、人类学、遗传学、牙科学等多种学科的方法。随着现代科学的飞速发展,新仪器新技术的不断涌现并在 Forensic science is a branch of forensic science, which is a science that uses the theories and technologies of medicine, biology and other natural sciences to study and solve forensic identification of law-related biological samples. Forensic medical evidence test should be on the case of forensic medical evidence (human tissues and organs, secretions, excretions such as blood, bloodstains, semen, semen, saliva spots, vaginal secretions, urine spots, feces, amniotic fluid, lochia, And hair, bones, teeth and other biological samples) to test the identification, in order to determine whether they in the case as a positive or negative basis. The test methods include morphological, chemical and biochemical, immunochemistry, immune serology, anthropology, genetics, dentistry and other disciplines. With the rapid development of modern science, new technologies and new instruments continue to emerge