acbytesla
Penultimate Amazing
- Joined
- Dec 14, 2012
- Messages
- 39,468
The score is not zero. It would be zero is that was just one trivial stain identical to many others, with a 100 possible and probable banal origins, for which you can draw probable scenarios.
But this is a set bare footprints, originated by some extremely unusual event; moreover they are at a murder scene where there are other bare footprints proven to be in diluted blood; other luminol traces yielding mixed victim's+suspect's DNA in a room where they were not supposed to enter (and where a break appears to be staged); where the murderer(s) obviously washed themselves in a bathroom (barefoot); where there are other traces of mixed-DNA blood (proven presence of both suspect's+victim's blood); where there is obvious evidence of cleanup (clean floor with stained and wet bathmat, soaked towels, shoeprint washed away etc.); and where there is no alternative substance that would be positive to luminol (even less a substance that would be positive to luminol but not positive at TMB).
An also scientific literature (and manuals) that say: TMB may not work on diluted stains.
So sorry, the score is not zero.
You amuse me Machiavelli. You are arguing for stupidity, Machiavelli. You are saying the earth is flat and that the Sun revolves around the moon. Not really surprising.
NO the score is less than ZERO. The simple fact that the crack, I mean joke scientific police of Perugia actually conducted the multiple step process like forensic scientists worldwide demonstrates how it is done.
Testing for blood is a MULTIPLE STEP PROCESS, a minimum of two with one being a confirmatory test. False positives are common with pretty much all the presumptive testing methods and false negatives are rare. This is why it is recommended that two presumptive tests be performed before the more costly confirmatory test. It is assumed that a negative reaction from any of of the presumptive color tests Benzidine, Phenolphthalein, O-Tolidine, Tetramethylbenzidine, Leucomalachite Green that a technician can assume that the sample is not blood. A positive test from these means that that tech can conclude that it is "presumptively" positive and then perform the necessary confirmatory test.
The simple fact that the morons in Perugia did not perform the REQUIRED confirmatory blood test means that they are willing to accept that their negative TMB test is correct and the world can ASSUME it is NOT BLOOD.
BTW, the bare footprints were not originated by an extremely unusual event. We have no idea what originated the bare footprints. POST HOC ERGO PROPTER HOC, my friend. You are drawing a false causal link.
The simple truth is that we can assume that
WITHOUT A POSITIVE CONFIRMATORY TEST....A NEGATIVE PRESUMPTIVE TEST is AUTHORITATIVE.
So that means:
BLOOD FINAL
NEGATIVE ..... 67
POSITIVE ... 7
Last edited: