现场手印上发现脱落细胞的研究与思考

Research and Reflection on the Exfoliated Cells Found on the On-Site Fingerprints

摘要: 在犯罪现场，汗液手印和脱落细胞的遗留率较高，但如何精准地发现脱落细胞仍然是勘查民警面临的难题。通过研究分析现场手印上发现脱落细胞的原理——不破坏手印条件下，在400倍放大显微镜下发现现场的人体皮屑。利用该原理设计出一款含有光学成像、专用滤色系统、一体化多波段光源、超高清显示、光学显微镜等结构的仪器，可以同时发现手印和手印上的脱落皮屑。

Abstract: At the crime scene, the retention rate of sweat fingerprints and exfoliated cells is high, but how to accurately find exfoliated cells is still a problem faced by the police. Through research and analysis, the principle of finding exfoliated cells on the on-site fingerprints, human dandruff on the site can be found under a 400 times magnification microscope without destroying the fingerprints. Based on this principle, an instrument with optical imaging, special color filtering system, integrated multi band light source, ultra-high definition display, optical microscope and other structures is designed, which can find the fingerprints and the peeling dander on the fingerprints at the same time.