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NCJ Number: 249396 Find in a Library
Title: Forensic Evidence in Homicide Investigations and Prosecutions
Journal: Journal of Forensic Sciences  Volume:60  Issue:5  Dated:September 2015  Pages:1188-1198
Author(s): Tom McEwen; Wendy Regoeczi
Date Published: September 2015
Page Count: 11
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
Grant Number: 2011-DN-BX-0007
Document: HTML
Type: Report (Grant Sponsored); Report (Study/Research); Research (Applied/Empirical)
Format: Article; Document (Online)
Language: English
Country: United States of America
Annotation: This article adds to the literature by providing the results of a study of 294 homicide cases (315 victims) occurring in Cleveland, Ohio, between 2008 and 2011.
Abstract: Even though forensic evidence is collected at virtually every homicide scene, only a few studies have examined its role in investigation and prosecution. Using a logistic regression on open versus closed homicide cases, the current study found that the collection of knives, administration of gunshot residue (GSR) kits, and clothing at the scene were positively and significantly related to case closures, but collection of ballistics evidence and DNA evidence were statistically significant in the opposite direction. With regard to analysis, the clearance rate for cases with probative results (i.e., matches or exclusions) was 63.1 percent compared to a closure rate of 56.3 percent for cases without probative results; however, only 23 cases had probative results prior to arrest compared to 128 cases with probative results after arrest. (Publisher abstract modified)
Main Term(s): Police criminal investigation training
Index Term(s): Case studies; Homicide investigations; Investigative techniques; NIJ grant-related documents; NIJ Resources; Police effectiveness
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