"Silencers works by slowing the exiting hot gases. In this case we have to believe the blood flake could withstand this. And yet exhibits which had a greater quantity of blood unaffected by such an environment were unable to be grouped:...."
This fact was something that all the experts were very much aware of!
My understand of "back spatter" is immediately after the hot gases being emitted, this then causes a kind of suction which draws the blood in.
Who are all the experts you refer to?
I am aware that post trial the defence argued heat, from repeat firing of the rifle, may have produced the results presented at trial. To test this hypothesis FSS Huntingdon placed blood in a (the?) silencer and discharged a (the?) rifle with the same/different ? ammo a total of 25 times. We are told the results were unaffected.
The experiment was to test whether between the 25 shots, at soc, blood had entered the silencer, dried, and further blood had entered and deposited on the dried blood thus producing the defence argument that the blood represented an intimate mix of June and NB's.
The above was all about the mixed blood argument presented by the defence at trial. A simple typed report was produced without the photographic evidence that is generated by tests using gel electrophoresis. There is no evidence that the defence asked its own experts to check over the simple typed report and ask for the supporting photographic evidence.
My hypothesis is that a blood flake would not have been able to withstand the enviroments:
- Hot gasses from silencer
- Time spent in the cyanoacrylate fuming chamber
- Time spent hanging around in ambient temp from the above until we are told the flake was identified on 12th Sept
- I have been advised by arguably the world's leading expert on blood serology that PGM is more robust than AK and EAP and yet in this case we are told the flake was unable to produce a result for PGM!
- None of the other case related exhibits were able to produce the sort of results we are told the flake did despite the fact other exhibits contained a greater quantity of blood which did not sustain the sort of environmental insults the flake underwent.
I do not trust anything coming out of FSS. I have carried out considerable research into much of the trial testimony and I believe it is wrong.
3.3 FSS Quality
3.3.1 Following some high profile quality failures in the 1980s the FSS implemented accreditation to quality standards from 1993 onwards, a world first for forensic science. The present FSS in-house quality framework goes well beyond the basic requirements of ISO17025 and is in close accord with the FSR’s forthcoming Codes. Indeed, before closure was announced the FSS were planning to act as a test-bed for compliance to this code later this year.https://publications.parliament.uk/pa/cm201011/cmselect/cmsctech/writev/forensic/m61.htmPlus at the time the Bamber exhibits were under examination FSS Huntingdon was headed up by Ronald Outteridge, the forensic scientist charged with perverting the course of justice in the case of Stefan Kiszko:
https://www.watersidepress.co.uk/wp-content/uploads/Criminal-Proceedings_Holland-Outteridge.pdfAnd the above is just the tip of the iceberg about the flake being a crock of shite.