Centre for Forensic Science, University of Technology, Sydney, Broadway, NSW, Australia.
Forensic Sci Int. 2013 Jul 10;230(1-3):74-80. doi: 10.1016/j.forsciint.2013.03.041. Epub 2013 Apr 20.
This paper describes the application of a luminescent lipid stain, nile red, for the development of latent fingermarks on porous surfaces. An optimised formulation is presented that provides rapid development of latent fingermarks on porous surfaces that are or have been wet. A comparison with physical developer (PD), the method of choice to enhance such fingermarks, indicated that nile red was a simpler and more stable technique for the development of fingermarks. The nile red formulation showed similar performance to PD across a range of substrates and ageing conditions, although PD still showed greater sensitivity on five-year-old examination booklets used in a pseudo-operational study. The pseudo-operational trial also indicated that nile red consistently developed different fingermarks to those enhanced by PD, suggesting that it preferentially targets a different fraction of the latent fingermark deposit. Significantly, the compatibility of nile red in a detection sequence with indanedione-zinc, ninhydrin and PD is reported.
本文介绍了荧光脂质染色剂尼罗红在显现多孔表面潜伏指纹方面的应用。提出了一种优化配方，可快速显现潮湿或曾经潮湿的多孔表面上的潜伏指纹。与物理显影剂（PD）进行比较，PD 是增强此类指纹的首选方法，结果表明尼罗红是一种更简单、更稳定的指纹显现技术。尼罗红配方在一系列基质和老化条件下的表现与 PD 相似，尽管 PD 在伪操作研究中使用的五年期考试簿上仍显示出更高的灵敏度。伪操作试验还表明，尼罗红始终能显现出与 PD 增强的指纹不同的指纹，表明它优先针对潜伏指纹沉积物的不同部分。值得注意的是，还报告了尼罗红与茚三酮-锌、邻苯二醛和 PD 在检测序列中的兼容性。
