That's because the theory does not stand up to scrutiny.
You have to argue that thousands of documents across Essex Police, The Forensic Science Service, Huntingdon Lab and The City of London Police are all backdated forgeries. Not only that but backdated forgeries that all happen to fit together and all the witnesses whent ahead with it. A conspiracy of this magnitute is not possible to sustain. People involved would sooner or later speak out.
You have made no attempt to explain how the fingerprint dust could have been all around the house on August 10th even though the house not not fingerprinted until later than September 6th 1985 when the case became a murder investigation.
The basic point is that an "anomaly" such as this provides conclusive proof that a whole bunch of witness statements are fraudulent, unless you have evidence that the house
was fingerprinted before then.
And apart from that, it is clearly documented that DC Oakey collected a silencer and other items from Ann Eaton on September 11th 1985.
(Doc P35) Action Report 88 reads: ‘Collection of silencer AE (Ann Eaton) 11th September to Wright. items obtained by DC Oakey’Mike Tesko
http://jeremybamberforum.co.uk/index.php/topic,606.msg12826.html?PHPSESSID=sb0e5558549rt0ba24g7uufe13#msg12826"Boutflour speaks about Basil Cock, complaining about the fingerprint dust, at the time the silencer was found in the gun cupboard at whf - what this means is that the silencer to which he is referring to, could not have been found in the gun cupboard at whf on 10th August 1985, because no fingerprint examination took place at the scene as part of the SC/688/85 investigation, such a fingerprint examination was not undertaken at whf until the investigation changed on 6th September 1985, under SC/786/85..."
The date when the silencer that was found in the gun cupboard has been changed from 11th September 1985, and back dated to 10th August 1985, and confirmed by reference to the fingerprint dust which was all over the place at whf, from 6th September 1985, onwards..."