This Question: 1 pt 2 of 3 (1 complete) This Quiz: 12 pts possible Your assignme

Question

This Question: 1 pt 2 of 3 (1 complete) This Quiz: 12 pts possible Your assignment is to understand how a forensic scientist uses glass fragments to place a suspect at the crime scene Interview a forensic scientist and ask him or her how forensic scientists distinguish one glass fragment from another Find out how often this type of comparison is possible. Ask the scientist about the difficulties all forensic scientists face while working with glass fragments, Do you think it is a time-consuming exercise which may not yield the desired results? State your opinion for or against this question

Explanation / Answer

A glass is defined as an inorganic product produced by the fusion which is cooled to a rigid condition without crystallizing, they are amorphous material made by melting sand, lime and Sodium oxide at the very high temperature and cooled it quickly so that there is no time for crystals to form in the glass.
In the Forensic Science Glass analysis is carried out in following steps:
1. Visual inspection of Known or questioned for fracture matches.
2. Comparison of glass- by analyzing physical properties, Optical properties, and chemical properties.
The various Physical properties that are being considered for the examinations includes
1. Color of the glass
2. Direction of the curvature
3. Thickness of glass
4. Analyzing glass fractures
5. Radial and concentric cracks and so on
6. Density measurements
Optical properties that are being carried out include
1. Refractive index
2. Becke line
3. Color
4. Fluorescence
Chemical composition is measured in the last stage.
Yes, I do consider its a time-consuming method as it’ll require getting through a long list of tests in order to get or set up indirect evidence to establish, but it most effective way to establish a solid evidence against the suspect. The chips of broken glass window may be lodged in suspect’s shoes or garments during the act of burglary/crime; particles of headlight glass found at the crime scene may offer clues that confirm the identity of a suspected vehicle. Whenever there is violence, bottles, window pane glass, mirrors, eyeglasses and other glass objects can be accidentally scattered and fragments of these can also adhere to the criminal’s clothing or shoes.

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