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In this experiment, the viability of gunshot residue (GSR) was examined. This was done through the very rarely researched intersection of forensic firearms analysis and forensic entomology. The question being resolved is if GSR can reliably be detected from secondary evidence transfer of GSR laden carrion onto flies and their

In this experiment, the viability of gunshot residue (GSR) was examined. This was done through the very rarely researched intersection of forensic firearms analysis and forensic entomology. The question being resolved is if GSR can reliably be detected from secondary evidence transfer of GSR laden carrion onto flies and their larvae. While it is know that secondary and tertiary GSR evidence can be transferred by way of handshakes, no such research has been conducted on flies or their pupae. Findings indicated varying levels of detection of GSR on evidence. GSR could reliably be detected on fly bodies and their legs, but not on their pupae. This research is significant as it provides previously unknown information on this line of research and provides the groundwork for further research on this topic in the future.

ContributorsGill, Brendan J (Author) / Parrott, Jonathan (Thesis director) / Weidner, Lauren (Committee member) / School of Mathematical and Natural Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Bloodstain Pattern Analysis and Toxicology are important aspects of Forensic Science in determining what occurred at a crime scene. There are limited studies done on the effects of drugs on blood spatter found at crime scenes. Since drugs can have different effects on the body, the blood would be affected

Bloodstain Pattern Analysis and Toxicology are important aspects of Forensic Science in determining what occurred at a crime scene. There are limited studies done on the effects of drugs on blood spatter found at crime scenes. Since drugs can have different effects on the body, the blood would be affected by these drugs. Visine and Aspirin were chosen to be incorporated into sheep’s blood due to their common use in the general population. Contaminated blood was deposited onto several common surfaces alongside controls. The results were compared to the control and the secondary control, DI water added to blood, using a two-sample t-test. Many of the results came back as significant including the secondary control compared to the control group. Therefore the significance of the results cannot be linked directly back to the substances themselves, but to the water in addition to the substance added. Future studies could be done with higher concentrations of drugs, with the metabolites of drugs, and with different drugs, licit and illicit.
ContributorsWedel, Sydnee (Author) / Parrott, Jonathan (Thesis director) / Weidner, Lauren (Committee member) / Barrett, The Honors College (Contributor) / School of Mathematical and Natural Sciences (Contributor) / School of Criminology and Criminal Justice (Contributor)
Created2022-05