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伴随现代社会生活的进步,犯罪手段趋向高技能化,案件的侦破越来越困难。其难点主要表现在证据的发现与认定。在若干解决难题的方法中,现代化学检验的方法是侦查工作不可或缺的。一、指纹检验指纹是每个人特有的生物表征。这个表征具有稳定性。个体6个月形成指纹,此后终生不改。但是,指纹不能用肉眼看出。即使罪犯在器物上留下指纹,如何还原它就成了一个问题。化学手段借助于手指在器物上的残留物质,如油脂、盐分及氨基酸的排列与指纹凹
With the progress of modern social life, criminal means tend to be highly skilled and the detection of cases becomes more and more difficult. The difficulty is mainly manifested in the discovery and identification of evidence. Among several methods of solving problems, modern methods of chemical examination are indispensable for investigation. First, fingerprinting Fingerprinting is a unique biological representation of everyone. This characterization is stable. Individuals 6 months to form a fingerprint, life-long change. However, fingerprints can not be seen with the naked eye. Even if criminals leave fingerprints on objects, it becomes a problem how to restore it. Chemical means by means of fingers on the utensils residues, such as grease, salt and amino acid alignment and fingerprint concave