In addition to the lands and grooves which line the barrel of the anshuzt rifle, are straition and tooling marks, and blood from the victims deposited itself deep into the grain of the gun metal...
It was impossible for a cloth pull - through (MDF/1) to have entered into all of these inaccessible regions of the gun barrel, no matter what charlie boy has to say - and in any event, a professional clean using the correct fine tooling equipment to sanitize the end of the anshuzt rifle barrel will apparently not do any harm according to charlie...
So, this is what needs to be done, the barrell of the anshuzt rifle needs to be professionally cleaned using fine tooling equipment, to an equivalent depth of the distance which blood was said to have travelled down into the sound moderator. once all the debri is removed, it can be scientifically examined and tested for blood grouping, and or DNA profiling...
Charlie boy can scream all he likes, the proof of the pudding is in the eating. Reviewers are confident that cleaning this small part of the anshulzt rifles barrel, and having all the debris which gets removed at that time, will reveal whether or not the silencer was fitted to the gun barrels at the time Sheila Caffell was shot under the chin and killed. Similar tests have been done by experts on other occasions with satisfactory results, so Charlie boy and his gang of "Bamber is guilty", clan will now be worried sick that at long last, a test is available to prove one way or another if a silencer which had blood at its top end (Muzzle) covering 8 baffles, with no blood at the bottom end (screw thread end) consisting of 9 baffles, was on the gun at the critical moment...
Charlie boy can scream all he likes...
The test can be done, the debris from inside that crucial section of the barrel can be scientifically examined, and if Sheila's blood is detected in the remnants of the debris removed, then the game will be up for the great pretenders...
How could Sheila's blood (in those circumstances) have passed beyond 9 spotlessly clean baffle plates and become deposited inside the recessed areas of the lands and grooves, striation and fine tooling marks in that crucial part of the guns barrel...