| Alteration of expirated bloodstain patterns by Calliphora vicina and Lucilia sericata (Diptera: Calliphoridae) through ingestion and deposition of artifacts. | |
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MedLine Citation:
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PMID: 21039518 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Bloodstain pattern analysis can provide insight into a sequence of events associated with a violent crime. However, bloodstain pattern analysis can be confounded by the feeding activity of blow flies. We conducted two laboratory experiments to investigate the relationships between Lucilia sericata (green bottle fly) and Calliphora vicina (blue bottle fly), expirated bloodstains, and pooled bloodstains on a range of surfaces (linoleum, wallpaper, textured paint). C. vicina and L. sericata changed bloodstain pattern morphology through feeding and defecation. They also deposited artifacts in rooms where blood was not present originally. Chemical presumptive tests (Hemastix(®) , phenolphthalein, leucocrystal violet, fluorescein) were not able to differentiate between insect artifacts and bloodstains. Thus, C. vicina and L. sericata can confound bloodstain pattern analysis, crime scene investigation, and reconstruction. Crime scene investigators should be aware of these fundamental behaviors, and the effects that blow flies can have on expirated and pooled bloodstain patterns. |
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Authors:
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Becca Striman; Amanda Fujikawa; Larry Barksdale; David O Carter |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-06 |
Journal Detail:
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Title: Journal of forensic sciences Volume: 56 Suppl 1 ISSN: 1556-4029 ISO Abbreviation: J. Forensic Sci. Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-01-04 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0375370 Medline TA: J Forensic Sci Country: United States |
Other Details:
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Languages: eng Pagination: S123-7 Citation Subset: IM |
Copyright Information:
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© 2010 American Academy of Forensic Sciences. |
Affiliation:
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Department of Entomology, University of Nebraska-Lincoln, 68503-0816, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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