Machiavelli
Philosopher
- Joined
- Sep 19, 2010
- Messages
- 5,844
.Agreed Machiavelli, TMB is not a confirmatory test. Tell us about the confirmatory test that was used
Stefanoni said in 2008 that "several tests" were done on samples from the corridoor from spots where also footprints were found. She also said that those tests were negative. She also said (back in 2008, Oct. 4.) that basically this always happens on luminol prints even when it's blood.
How do you justify coming to a positive conclusion in the absence of any confirmatory test and a negative TMB test?
I recall now a post of 2013 on this:
http://www.internationalskeptics.com/forums/showthread.php?postid=9582907#post9582907
I call the luminol footprint set a piece of circumstantial evidence.
I summarized again, a page ago, why I see significant information in the luminol footprint set, and why I conclude they are in blood. One of the points, just to say one, the fact that there are bare footprints with stunnignly identical features (isolated, bare feet, diluted substance, same sizes) that were found on the same crime scene and they were in actual diluted blood (and they are explained by belong to the same dynamic).
Quote from my linked post above:
Machiavelli said:Yes, if this was the only piece of information, itself, it would be insufficient information. I mean, if it was a random otherwise meaningless stain.
But if the stain has the shape of human foot and if the distribution of the barefoot prints is not explained by a random normal activity, and if there are other identical footprints actually proven to be in diluted blood, which also have identical peculiarities (isolated, not part of a trail, diluted/washed by water, and possibly even produced by the same person), and one of the luminol stain yields DNA suspect+victim and another one corresponds to a washed up former print originally belonging to the Rudy Guede trail, and when you don't have any other plausible substance in the apartment, or even that you can think about, as plausible alternative ... If you happen to have these and other further pieces of information as we in fact have, well in this event the assessment should be "holistic", as the Supreme Court suggest.
acbytesla said:Also, please tell all us laymen out here why most forensic techs (including Stefanoni) use TMB as a secondary presumptive test after Luminol? Are all these techs and forensic manuals wrong? (This is a serious question Mach...don't dodge it).
Personally, I frankly believe there may be a habit of always performing TMB test because the luminol test may be very difficult to document and record (what happens if you make it wrong?); I think the habit to do the TMB test too is because TMB is so quick, cheap and easy.
Last edited: