Exactly. "the truth is something prevented the firearms team"
I don't know what prevented them,I truly don't,I could make guesses but that's all they would be.But Being afraid of a woman barking like a dog ain't one (IMO).
A firearms team I would imagine will adhere to a Standard Operating Procedure.that way every one knows what there doing.Find out what the SOP would of been at the time of the murders and check if there are any anomalies in procedure. that's a better avenue to examine than SC doing dog impressions
Mimicking of the dog did not help matters, there were periods during that one hour of activity (between about 5:25am to 6:30am) that the firearms team did not know of the whereabouts of Sheila inside the farmhouse, due to the noises she was making (which got relayed through the 999 system in the control room to the firearms team at the scene). They didn't know if she was upstairs, or downstairs, simply because they did not know at that stage which telephone handset was off its cradle?
Police didn't know it was the telephone in the kitchen which had its handset off its cradle, until they got into the kitchen at about 7:30am...
But as soon as WPC Julia Jeapes took up her position in the role of containment and observation, and she spotted the rifle leaning up against the bedroom window at about 7:15am, police gambled on Sheila being upstairs in the bedroom, where they knew there should have been a telephone - which was why the raid team went in very quickly after the sighting made by Jeapes. Police thought Sheila was upstairs ion the bedroom, and as long as somebody kept sight of the gun at the window, and that is precisely what WPC Jeapes did, or as the case may be, what some other police officers did, using the scopes on their rifles...