Morning Maggie
I have always been skeptical about this panic button as the only place I've seen it mentioned is on the forum. Certainly needs checking out to the nth degree though 
I agree its only ever been mentioned on this forum ......originally it came from the family
via Vic who now has apologised, has said it was a misunderstanding by him and the button was fitted after the murders as stated by Jeremy....so he doesn't always lie

As far as I'm concerned the riddle of the panic button is solved.