If Boutflour told the truth recently about the state of the silencer he found and the fact that blood was literally pouring from it, and that this blood contaminated the box inside which the silencer had been found, then police must have arranged for the bloodstained box to be examined at the lab' and the results from the examination of this box, would be vital in helping the court to establish whose blood it belonged to, or originated from? If once this blood in the box had been examined it produced positive blood group activity confirming the blood originated from Sheila, then all well and good, but for some reason this evidence has been suppressed which gives an indication that the blood might not have belonged to Sheila at all, at least not exclusively?