摘要
目的介绍1种新型PolyCyano UV粉末显现非渗透性光滑客体表面潜手印的新技术。方法选取多种常见客体,由志愿者在客体上捺印指印,将PolyCyano UV粉末加热至230℃使其升华,待该粉末在手印纹线上聚合后使用长波紫外线照射若干时间,然后在蓝光激发下使用滤色镜观察并拍照。结果绝大部分非渗透性光滑客体表面上的潜手印均有很好的显现效果,尤其是对浅色或白色客体有十分明显的荧光效果,对陈旧手印也有较好的显现效果。结论该方法熏显操作简便、显现时间短、无需二次染色增强、不破坏生物检材、显现效果明显,适合推广使用。
Objective To explore the application of PolyCyano UV powder in development of latent fingerprints on non-porous surface.Methods The fingerprints were treated with PolyCyano UV powder（manufactured by Foster ＋ Freeman Ltd.） and observed or photographed with blue light and orange filter after exposed to long wave UV light for several minutes or hours.Results The latent fingerprints on the majority of non-porous objects,especially on light colors or white objects were developed successfully.In addition,the aged fingerprints could be developed.Conclusion This new technology has great potential as a simple,chemical-free,short-time method for fingerprints detection.
出处
《刑事技术》
2013年第4期51-53,共3页
Forensic Science and Technology
关键词
PolyCyano
UV粉末
长波紫外
蓝光激发
手印显现
PolyCyano UV powder
fluorescent cyanoacrylate
long wave UV
bule light exciting
fingerprint development
