OH yes, her only way out now.................. after parting ways with TAFF on the Friday Evening the 9th of Aug she has put Stan climbing through WHF window or [having a key cut] locating the silencer, Pricking his OWN finger, scratching the AGA, and then plucking his hair, then hidng the silencer in the hope the relatives find it?
Or using some kind of skeleton key. He was an experienced police officer with much of his service pre PACE. He would be use to finding ways to enter apparently locked buildings. See the image of the police entering SC's via a window.
He knew where the silencer was located from AP.
Yes he used his own blood knowing that tiny bloodstains at that time were incapable of grouping.
Yes he scratched the AGA having already had a look at SOC images.
No he didn't pluck a hair from his own head. That's silly. He was mainly dark and NB was grey. It would be easy to locate NB's hair on combs, brushes, outerwear, hats. It would be all over the place. I assume the inference with the hair was that the silencer was on when NB sustained a beating with an object thought to be the rifle.
He didn't need to hide the silencer. It was simply popped back in its rightful place. And if they hadn't found it when they did he could simply have slipped it into a conversation later eg 'Oh btw did you find the silencer'?
And before he left he helped himself to the contents of NB's wallet.