人体气味的证据价值及检验技术进展

The progress of evidence character and analysis technique of human body odor

人体气味是具体人的一种生物信息,皮肤腺是人体气味产生之源。由遗传基因控制的人类白细胞抗原,经由免疫系统决定人体气味的特征。遗留于犯罪现场的人体气味具有相对稳定性,是与案件事实相关联的一种物证,具有一定的证据能力。警犬鉴别是辨识人体气味的主要技术手段。电子鼻、气相色谱质谱等化学分析仪器也可用于人体气味的检测分析。利用气相色谱质谱(GC/MS)对气味进行辨识具有嗅觉学的作用。警犬鉴别人体气味的结果与仪器分析的结果相互印证是检测分析人体气味证据技术的发展方向,也是人体气味证据走上法庭的关键技术。

Human body odor is a kind of biology information and root in skin gland of the human. The heredity gene controls the human leukocyte antigen and deciding the characteristic of the human body odor by the immune system. The human body odor left on the crime scene has the relative stability and can be used as evidence to link suspect. Discrimination human body odor by police dog is a main technique method. The human body odor can also been analysis by Electronics nose and gas chromatography mass spectrometry（GC/MS）. GC/MS is a kind of effective analyze method to the intricate organism compound and GC/MS is frequently used to identify and quantify odorous compounds as olfactometry. Demonstrated each other the result of the police dog discrimination of human odor and instruments analysis of human odor are development direction to investigated odor evidence and a key technique of human odor evidence.