|Posted on Tuesday, August 24, 2004 - 06:32 pm: ||
I'm not surprised that there's little or no specific literature on such a combination. One might expect that the most common criminal scenario would place the article bearing the prints in a set fire shortly after the prints had been deposited. If the surface is obscured by soot, only some special circumstance might lead one to suspect that there were blood prints under the soot. Otherwise, they might be discovered, if the surface was suspected of bearing latent prints at all, by dusting away the soot, expecting perhaps to find the more common prints with soot adhering. But, more commonly, objects suspected of bearing prints from an arson scene are rinsed with water, which presents an obvious risk of damage to even baked on blood prints.
In that case, one might find something like one I found in an arson case in which a fingerprint was etched into an aluminum can through the combination of secretions and acidic soft drink being heated.
There are a number of variable, primarily, I think, the water content of the blood prints at the time of the fire and the ambient heat.
The author of:
appears to have done research into latent prints in fire scenes.
I hope the "investigation" part of your title means you will experiment. If properly done, it might be worth submitting to Fingerprint Whorld when you're done.
|Posted on Friday, August 20, 2004 - 05:08 am: ||
Hello I am currently studying Forensic Science at Staffordshire University. I am in my final year and am researching the following dissertation title :
'investigation into the developing/enhancement of fingerprints by chemical methods that have been obscured by soot. Looking at a variety of surfaces (glass, wood, paper etc) marks left in/by blood'
Unfortunately I have not had much luck in finding information on fingerprints that have been left in blood and then been obscured by soot.
I would appreciate any information, help or guidance anyone can offer.
My e-mail address is