Matching Items (3)
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- All Subjects: Forensic Science
- Creators: Parrott, Jonathan
- Creators: Brehman, Brian
Description
Forensic science has commanded the spotlight in mainstream media, both fact-based and fictional. Popular fictional shows, like CSI: Crime Scene Investigation, give unrealistic scenarios of criminal proceedings by forensic scientists and investigators. From inaccurate timetables to blurred job responsibilities, fictional media has spread misconceptions of the industry. Fictional shows depict unrealistic relationships between the investigators and the scientists. Documentary crime shows and movies, while based in fact, are often oversimplified for entertainment purposes. Public safety officials and the news media are often at odds. The media yearns to release case details as quickly as possible, while officials attempt to keep investigations closed to the public to minimize public harm. This research takes a unique approach to study the impact media entities have on the public's perception of Arizona's criminal just system, and how the system has responded as the public's expectations have been altered. Evidence collecting procedures have changed, along with the sheer volume of evidence processed on a daily basis at crime labs around the state. Courtroom procedures have also changed, as juries now expect physical evidence to be presented in every case. Mass media must do a better job of accurately portraying criminal investigative techniques in order to better educate the public, and to produce a better informed jury pool with reasonable expectations concerning criminal evidence. Higher education also has a significant role to play in both making the public aware of the power and limitations of forensic science, and in preparing future generations of forensic scientists.
ContributorsSmouse, Rebecca Jean (Author) / Lafond, Sue (Thesis director) / Brehman, Brian (Committee member) / Walter Cronkite School of Journalism and Mass Communication (Contributor) / School of Criminology and Criminal Justice (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
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
Description
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