The short answer is the heat was not even sufficient to rapidly dry the blood let alone to change anything. Extreme heat will not change blood it will make results unable to be obtained. A great number of factors affect how quickly it will break down and results not be obtainable including passage of time. Had they tested the blood much sooner would they have been able to get a stronger AK1 reading? There is no way to know for sure it may have.
I forgot to say I'm not sure what you mean by "stronger AK1 reading"? Are the "readings"/results on a scale of strength?
Silencer: A, EAP BA, AK1, HP2-1
SC : A, EAP BA, AK1, HP2-1
June : A, EAP BA, AK2-1, HP2-1
NB : O, EAP BA, AK1, HP2-1
If the blood from NB and June became "intimately mixed" this would mean June's A grouping dominated NB's O grouping and NB's AK1 enzyme dominated June's AK2-1. How were they intimately mixed? I have thought for a long time John Hayward's trial testimony might well end up the same way as that of Prof Roy Meadows in the case of Sally Clark.
Forensic scientist George Schiro:
http://www.forensicscienceresources.com/georgecv.htmwith some 30 years experience states:
"Conventional serological analysis
Analysis of the proteins, enzymes, and antigens present in the blood. These substances are more susceptible to degradation than DNA and this type of testing
usually requires a "large" sample (quarter size) in good condition for optimal results. This type of testing is rarely statistically individualizing".
http://www.crime-scene-investigator.net/print/blood-print.htmlBut the CoA doc states:
"464. Mr Webster made a number of points:
i) He suggested that the flake,
which was a quarter of an inch across, might not have been a flake of blood but a flake of soot splattered with blood that had been mistaken by Mr Hayward for a flake of blood. His one basis for this rather surprising suggestion was that he had noted a flake of soot on one of the baffles".
"Large" sample quarter size = diameter = 24.26mm
= width = 1.75mm
Flake= 1/4 inch = 6.35mm
&%+((£
Too many anomalies for my liking:
- Size
- Condition eg exposed to heat and prolonged ambient temperature (above from George Schiro states need "good condition" and don't expose to heat)
- Only exhibit capable of conventional serological analysis. Why the silencer and not the rifle? Especially when the rifle was tested within the first week and the 'flake' in the silencer one month plus later.