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在流氓、强奸和强奸杀人犯罪现场,常留有潜在的分泌物指印,显现方法以蛋白质染色法效果最佳,此外还有茚三酮显现法.笔者介绍一种浅色渗透性客体上潜在指印显现的新方法,其显现效果在同一环境、条件下优于茚三酮法.它具有简便、易行、方便、快捷、效果佳的优点.显现试剂:石蕊试剂(1%的水溶液)显现原理:阴道分泌物,呈强酸性,其pH值是4～5.石蕊是一种酸碱指示剂,当遇到酸性物质时,变成红色.
In hooliganism, rape and rape murder crime scene, often have potential secretions fingerprinting, showing the method of protein staining the best, in addition to ninhydrin apparent method.I described a light-colored penetration of potential fingerprints on the object It shows the advantages of simple, easy, convenient, fast and good effect in the same environment and conditions under the same environment and appearance. Reagent: Litmus reagent (1% aqueous solution) Principle: Vaginal discharge, was strongly acidic, the pH value is 4 to 5. Litmus is a acid-base indicator, when encountered in acidic substances, turns red.