Abstract: Fibers are the most frequendy encountered form of trace evidence and can be used effectively in a wide variety of criminal cases and traffic accidents.This paper concludes the methods of fiber examination from the viewpoints of morphological features,chemical,optical,thermal characters and molecular structure.Techniques as birefringence,low angle laser light scattering photometer,thermogravimetry,pyrolysis gas chromatography and infra spectrometers,are evaluated and new development of undestructive method of Raman spectrometer is also been discussed.

Key words: trace evidence, fiber examination, discrimination

摘要： 纤维是刑事案件、交通事故等各类案件中可利用的重要物证。本文总结了纤维检验中,从外观形态、化学性质、光学性质、热性能、分子结构等角度检验纤维种类,尤其是单根纤维检验的方法:评价了双折率法、小角度激光散射法、差热分析法、裂解气相色谱法、红外光谱法在实际应用中的检测效能:展望了激光拉曼光谱法等新方法的应用情况。

关键词: 微量物证, 纤维检验, 种类鉴别