Deja Vu,
IMO we are going round the Mulberry Bush in this latest part of this Topic.
Many of the points raised here were answered by Mike's imput to questions raised in the Threads:-
The Riddle of the Backstairs, and
The Mystery of Photograph 13 (that being the Polaroid, or Instammatic photo taken very early on the morning of the massacre, in the 'backkitchen, den, or as Jeremy referred to it, the laundry room', by one of the initial Raid Party ( at approximately 5.25am).
Further to what has been discussed hitherto, may I ask you to ponder the following:-
a) anthony Pargeter left WHF on the Thursday previous to the Shootings, taking the bolt of his gun with him.(It is thought this is surprising, since the "Glorious Twelfth" was imminent, and AP with his shooting prowess,would very likely be participating).
b) the Farm Secretary, Barbara Wilson was on leave for some time prior to the Shootings.
It seems likely to me that, in the time available until Sheila and her twins arrived at WHF, Nevill will have arranged for the enhanced Security arrangements to be carried out -viz A) The telephone Alarm System, and B) The matter of changing the lock and fitting of inner security facility, to the door to the Yard. The various other external doors were fitted with bolts T&B, and could be considered secure.
JB most likely would be aware of this. So, too, would be any Third Parties, who may well have been cognisant of another means of facilitating access, and whom may have been so prepared.
Please put 'Thinking Caps on'.
"THE TRUTH NEVER SLEEPS. EVER!" MRD.