its ok - I found what was bugging me - I know I keeping harping on about the window :- but I saw a statement fromJB that the windows did not self lock - so he left a not on 16th sept to secure the window which he had gone in or out of? this post confirms I was not going mad

The windows were checked and there is no doubt about that. Taff Jones and a colleague went round the house and all windows and doors were locked from the inside. A forensic team came in on the 8th and found no evidence to support anyone had entered the house or got out via the windows. Another forensic team did a further extensive search of the windows September 8th to the 10th and again found nothing.
By late September the pressure was placed on the police by a third party who insisted that Sheila could not have used a rifle and shot her family.
A 3rd extensive examination took place of the windows on the 1st of October where according to Elliott he found a catch in the downstairs bathroom that had been scratched. See his account in the 2002 COA.
Yet, the exhibit was labelled RWC/8 If you look into this you will find that Elliot mislead the COA for he was not the one that had found this catch, Cook found it on the 28th September and had taken the catch from the window and had it labelled RWC/8 So what was Elliott and his team looking at on the 1st of October?
I find this totally unacceptable that 2 forensic teams failed to establish that the windows had not been used to gain access to the farm and nor did they establish and exit from any window in the house.
Yet, they knew Jeremy had entered the farm via a window on the 16th of September after the first 2 forensic examinations....So, on the 3rd examination it was established that the downstairs bathroom window had been used. Of course it had been used, Jeremy left a note on the 16th to BW to ask her to secure the window....The police knew he had gained entry, because at this point he was being watched.