|Posted on Thursday, October 06, 2005 - 07:08 pm: ||
Blood impressions are compared the same way all other finger and palmprints are compared. The matrix left behind by the finger/palm is not the issue. The issue is the clarity of the impression and the amount of detail available to compare. Generally, more detail is available in a palm impression because they are usually bigger in size.
If the fingerprint expert applies proper comparison techniques, there will be no issue with regard to the type of "ink" deposited.
Michael J. Love
|Posted on Wednesday, July 06, 2005 - 09:05 pm: ||
I was reading about a case where the evidence is a bloody palm print left near the body. The states expert testified that it's a match. I am wondering whether the properties of the blood could lead to misidentification because of it's viscosity, coagulation effects, etc (e.g., islands misinterpreted becasue the blood ink made it appear like a straight line). My question is whether the evaluators of this evidence should be wary of blood as the ink when they analyze the print? Any thoughts or contrary views?