Keyword: "bloodstain pattern analysis"

An Experimental Study to Quantify Error Rates Resulting from Measurement Deviation in Area of Origin Reconstructions of Blunt Force Impact Patterns

Mark W. Davison, Timothy M. Palmbach
The intent of this study was to attempt to quantify error associated with the measurements required in area of origin reconstructions resulting from the analysis of blunt force impact patterns. Mathematical tables were constructed in order to examine trends associated with changing width and length ratios and the influence of…

Casting Two-Dimensional Bloody Shoe Prints from Concrete, Fabric, and Human Skin: A Review of Several Methods with Recommendations

Thomas W. Adair
The recognition of bloody footwear impressions at a crime scene is not an uncommon occurrence for the criminalist. Traditionally these impressions have been recorded by photography or videography either before and/or after chemical enhancement. Photography is an ideal method to begin with since it is considered to be non-destructive to…

Detecting Blood in Soil after Six Years with Luminol

Ron Gabel, Sheri Shimamoto, Ivanie Stene, Tom Adair
In October of 2004 the authors began a study to examine the possibility of detecting blood in soil over extended periods of time. A sample grid was created on a hilltop at the Highlands Ranch Law Enforcement Training Facility located in Douglas County, Colorado (USA). The sample grid is comprised…

Exploring the Relationship Between Finger/Palm Prints and Blood

Rob Bone
The identification of an individual's fingerprint in the blood of a victim of crime is extremely powerful evidence. However, there's very little published literature on the various factors that affect the appearance of a fingerprint with the interaction of blood. One published technical report states that it's not possible to…

Further Validation of the BackTrack™ Computer Program for Bloodstain Pattern Analysis –– Precision and Accuracy

A.L. Carter, M. Illes, K. Maloney, A.B. Yamashita, B. Allen, B. Brown, L. Davidson, G. Ellis, J. Gallant, A. Gradkowski, J. Hignell, S. Jory, P.L. Laturnus, C.C. Moore, R. Pembroke, A. Richard, R. Spenard, C. Stewart
The BackTrack program for bloodstain pattern analysis is an excellent forensic tool that allows bloodstain pattern analysts to simply and quickly analyze patterns of projected bloodstains at bloodletting crime scenes. Although the program has been in use for a number of years, few validation studies have been carried out. In…