Comment from Richard Savage on The Other Site
“But is Berry correct that our opinion (the blood being on first) “rests on somewhat token and insubstantial evidence based on a single spot test with proteolytic enzyme on a microscope slide.” In http://shroud.com/pdfs/adler.pdf, Adler bases his claim on publications by himself, Heller and Jumper — but, are they all referring to “a single spot test”?
In all my reading, Richard, I have only ever seen one experiment cited in support of the “blood first, image second” dogma. It was the Adler/Heller experiment with the proteolytic enzyme, performed on a microscope slide, which described how digestion of the bloodstain left clean image fibres i.e. with fibres underneath resembling clean non-image fibres.
Conclusion: the blood came first, the body image second – suggestive evidence, but hardly definitive or clinching on which to base so major a claim
However, I do not claim to have read every word that has been written on the subject. So if anyone knows of supplementary experiments to back that claim, then please let me know (with a link too if possible).
As a retired biochemist who spent years handling enzymes, I have a number of reservations about that experiment. I shan’t bore the pants of people by listing them all. Suffice it to say that the experiment makes a number of assumptions (unwarranted assumptions in my view). Personally, I believe that in attempting to establish what came first, the initial experiment should have been a dry, not wet system, using mechanical and optical methods only. Here’s the kind of thing I have in mind, using a miniature version of an angle grinder and a lens or microscope.
One abrades the surface at as gentle as possible an angle the normal, as in the diagrams, and examines the abraded surface under the lens. One seeks to identify blood that is not overlaid with body image, or body image that is not overlaid with blood, deducing which came first.
I don’t imagine for one moment that the experiment is a doddle, given the thinness of the body image (allegedly less than 200nm in thickness) but it is worth trying in the first instance, using if necessary a range of image enhancement techniques. If it gives an unambiguous yes/no answer, then that is a result that is not hedged around with uncertainties, unlike the wet enzyme system.