Fiber Examination in Forensic Science

摘要

It is a well known fact for the most forensic scientists that the fibers may be used to provide crucial evidence in criminal cases. In the current era where much attention has been directed towards DNA analysis, fibers examiners must find new ways in which their service to the criminal justice system can be improved and extended. These changes can be focused on three major areas-finding new applications where fiber evidence may be useful to improve case management and analytical procedures; accumulating new information on fiber frequencies to facilitate the assessment of evidential value of case findings and striving to increase fibers intelligence work. Many forensic scientists have appreciated the uses of transferred fibers to provide evidence in criminal cases. The most frequent use is to provide evidence of possible contact between persons in crimes like murder, rape and sexual assault or aggravated assault. The next is in demonstrating contact between persons and other textile surfaces e.g. car seats or furnishings and usually concerns cases of armed robbery or terrorism. Fibers may be recovered from a point of illegal entry, or from weapons, knives, firearms, which may provide links to a suspect or victim. They can also be used to corroborate hit and run accidents, or to help in providing proof of having driven a stolen vehicle or having been driving whilst drunk. In the current era use of DNA has increased and leading to a real or perceived reduction in the importance of trace evidence, because of disadvantages associated with it which are: slow case speed, recovery and matching analysis. These disadvantages lead the case towards inconclusiveness. So, the success lies in overcoming these hurdles and giving marvelous contribution towards the crime reduction in the world.