Evidential significance of multiple fracture patterns on the glass in forensic ballistics

Egyptian Journal of Forensic Sciences

Abhimanyu Harshey¹  Tanurup Das¹  Vijay Kumar Yadav¹  Kriti Nigam¹  Sughosh Abhyankar¹  Neelesh Tiwari¹  Ankit Srivastava¹  Vijay Raj Anand² 

[1] 0000 0004 0506 5583, grid.411823.d, Dr. A.P.J. Abdul Kalam Institute of Forensic Science and Criminology, Bundelkhand University, 284128, Jhansi, Uttar Pradesh, India;State Forensic Science Laboratory, Government of NCT, New Delhi, India;

关键词: Trace evidence;    Glass fracture;    Forensics;    Fractography;    Multiple fractures;    Air rifle;    Fracture pattern;   

DOI  :  10.1186/s41935-019-0128-4

来源: publisher

【 摘 要 】

BackgroundIn the current scenario, glass plays a vital contribution in our standard everyday life. Fractured and fragmented glasses are most commonly encountered at the crime scene. During the commission of the crime, glass breaks and shatters into fragments or into minute particles that serve as trace evidence and may provide a significant lead for the probe. The fracture of glass could be the consequence of an intentional act or unintentional act. For the forensic purpose, study of glass fractures, i.e., fractography has paramount importance as it can provide noteworthy data and encourages an assortment of assessments to investigate the case especially in the shooting cases where a firearm is used. Multiple fractures on a glass pane also have enough potential to establish an investigative link. Presently, air guns are being used in many of the cases due to their simple accessibility. There are a number of cases that have been reported that involved the use of air guns.ResultThis study was conducted to evaluate the pattern of multiple fractures on the glass by the air rifle. For this purpose, glass panes of various thicknesses were test fired perpendicularly at a fixed range with an air rifle having round nose pellet. Measurements and analysis were made on some fixed parameter. Data was analyzed graphically and statistically to check the consistency in the trends.ConclusionConsistency in the trends was observed, which is analyzed by the test for the goodness of fit. The findings of this work have provided some significant different perspectives that may effectively contribute to the criminal investigation.

【 授权许可】

CC BY