水中浸泡纸张上潜在油脂手印的显现研究

本文主要探索经过不同水环境(雨水、自来水)浸泡后,多种纸张(A4纸、牛皮纸、定性滤纸、报纸)上遗留潜在油脂手印的显现方法。运用碘熏法对水中浸泡纸张上潜在的油脂手印进行显现。通过对比研究,碘熏法有效显现浸泡纸张上的油脂手印,浸泡时长24小时以内,手印纹线清晰。碘熏法作为一种高效,成本低的手印显现方法,可以较好地显现不同水环境浸泡后纸张上潜在油脂手印,为案件侦破提供线索和证据。

This research is mainly to study the method to develop oily fingerprints on different kinds of paper(A4 paper,kraft paper,qualitative filter paper,newspaper)after soaking in different water environment(rain water,tap water).The iodine fumigation method effectually develop oily fingerprints on paper soaked in water after 24 hours.Iodine fumigation as an efficient,low-cost method can develop oily fingerprints on paper soaked in different water,which provides clues and evidence for case detection.