There were 2 moderators at the farm one owned by another member of the family who kept his gun there. One moderator was recorded as being fingerprinted 2 days before the one found by the family was given to police.
The reason Jeremy got an engaged tone was because Nevill was phoning the police as their records show.
But why let evidence get in the way of a good theory.
The claims around whether Jeremy's dad telephoned the police represent a divisive argument even amongst supporters. Personally I find exploration of the calls a labyrinth not suited to my brain, which is not very analytical. No only has Bamber changed his call times, seemingly in accordance with the release of evidence over the years - but Julie Mugford was pressured in to changing the time of her call received from Bamber; and Ann Eaton appears to be complicit in this. This is explored is very well Scott Lomax's book.
One aspect of note is that PC West must have been instructed to re-write the first page of his log. From the copies that exist, he attempted to do so - but curiously, he did not change the crux of the details that were in the original log. The different logs from West can only be differentiated by way of spelling mistakes and certain letters being out of place when compared. He has not altered the call time. It is suspected by the defence that this copying was done to prevent ESDA testing from discovering what else was imprinted upon the original log. In other words, when an expert for the defence tested West's log, they were provided with the copy, rather than the original.
Anybody looking at the case, from any perspective, has to question why on earth would a police officer be re-writing part of the event logs?