Research funded in part by the University of Nebraska-Lincoln Undergraduate Creative Activities and Research Experiences Program.
Alteration of Expirated Bloodstain Patterns by Calliphora vicina and Lucilia sericata (Diptera: Calliphoridae) Through Ingestion and Deposition of Artifacts
Article first published online: 6 OCT 2010
© 2010 American Academy of Forensic Sciences
Journal of Forensic Sciences
Volume 56, Issue Supplement s1, pages S123–S127, January 2011
How to Cite
Striman, B., Fujikawa, A., Barksdale, L. and Carter, D. O. (2011), Alteration of Expirated Bloodstain Patterns by Calliphora vicina and Lucilia sericata (Diptera: Calliphoridae) Through Ingestion and Deposition of Artifacts. Journal of Forensic Sciences, 56: S123–S127. doi: 10.1111/j.1556-4029.2010.01575.x
Presented in part at the 61st Annual Meeting of the American Academy of Forensic Sciences, February 16–21, 2009, in Denver, CO.
- Issue published online: 3 JAN 2011
- Article first published online: 6 OCT 2010
- Received 20 July 2009; and in revised form 8 Nov. 2009; accepted 13 Nov. 2009.
- forensic science;
- blow fly;
- insect stains;
- fly spots;
- leucocrystal violet;
Abstract: 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.