Hi DaisyChains
MacFall concluded that the blood found on the lavatory pan was human and not menstrual. Dr Robert Coope conducted 118 tests using blood and came to the conclusion that the blood found on the lavatory pan would have been deposited there at least an hour after death. The shape and form (a small pyramid, a bit like a split 'pea') could not have made that mark immediately after the killing. The possibility being that it could have been taken up there by any of the police, medical staff or even Wallace himself.