Abstract: With the advantage of non-destruction,efficiency and direct viewing,the visual spectral comparator(VSC) has become a widely-used technique in forensic document examination.Using a VSC,optical properties of different writing materials and the corresponding meanings for examination were systematically investigated.The skills for getting optimal results and the scientific judgement for observation were also discussed.The study could be used for reference in practical examination and in establishing relevant standards or guidelines.

Key words: forensic document examination, visual spectral comparator(VSC), writing material, optical property

摘要： VSC文件检验仪具有不破坏被检验材料、高效、直观等优点,是目前文件技术检验中普遍使用的检验方法。本文利用该仪器较系统地对文件鉴定中常见的书写材料的光学特性,及其在文件鉴定实践中的应用作了较全面的研究,并对如何获得最佳检验结果和对检验结果如何作出科学的评价等方面进行了探讨,希望能为文件鉴定的实践及制定有关的技术检验规范时提供参考。

关键词: 文件鉴定, VSC文检仪, 书写材料, 光学特性