It's academic because, as you pointed out, such was only rumoured? But as you seem to be so hung up on Sheila's menstrual cycle I expect you're going to tell us from where "they" extracted the blood and say it was all part of their unfolding plan?
This is not a joke, it is a very serious matter. DCS 'Mick' Ainsley knew the truth, which is why Ann Eaton made mention in her COLP witness statement, that when she was testifying at the forthcoming trial, that if she was asked about the blood in Sheila' s heavily blood stained knickers being the source from where the relatives had contaminated the silencer (DRB/1) with Sheila's blood, that she was advised by Ainsley to respond by saying that you could tell the difference between normal blood and menstrual blood by the smell of it...
Don't try to embarrass me, with your tactics, I didn't tamper with the silencer by introducing Sheila's blood to it...
I am not an expert on this, perhaps you ought to question Annie Eaton, or former DCS 'Mick' Ainsley about it, but I don't think there is much if any difference in smell between a small dried flake of someone's menstual blood, and a small dried flake of that persons normal blood...
Let common sense prevail...
Why was DCS Ainsley giving such advice to Annie Eaton about the blood? Did he know something which he wasn't telling the rest of us?
Sure, he did...