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One-Sided Impact Spatter and Area-of-Origin Calculations

Authors:
Andy Maloney, Céline Nicloux, Kevin Maloney, Franck Heron
Journal:
Journal of Forensic Identification
Published:
2011
Abstract:

It is common practice when calculating area of origin from impact spatter to use stains from both "sides" of the pattern ‐ stains to the left and to the right of the blood source. Impact spatter at crime scenes, however, often provides the analyst with bloodstain patterns that are not as pristine as those created in a controlled environment. One situation that may arise is impact spatter consisting of stains from only one side of the pattern because of the removal of an object after the impact, such as a door or a person, or because the stains from one side are not on a planar surface. This study looks at a method of calculating the area of origin using stains from only one side of the pattern and shows that these partial patterns may still provide usable calculations to determine the area of origin.

Citation:
Maloney, A.; Nicloux, C.; Maloney, K.; Heron, F. One-Sided Impact Spatter and Area-of-Origin Calculations. J. For. Ident. 2011, 61 (2), 123-135.
PDF:
One-Sided Impact Spatter and Area-of-Origin Calculations
Data Files: One-Sided Impact Study Data 2011 (1 of 3).zip (752 MB)
One-Sided Impact Study Data 2011 (2 of 3).zip (758 MB)
One-Sided Impact Study Data 2011 (3 of 3).zip (674 MB)
Keywords:
area of origin calculation, bloodstain pattern analysis, HemoSpat, impact pattern analysis, impact spatter

Forensics Books

Forensic Science: An Introduction to Scientific and Investigative Techniques, Third Edition @amazon.com
Forensic Science: An Introduction to Scientific and Investigative Techniques, Third Edition
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