Of course Taff had his reasons for believing it was murder suicide and it was not just him most of the officers present saw nothing wrong with the crime scene, if he took the sand explaining his reasons the case collapses.
We cannot see all the original case notes unfortunately.
Taff Jones arrived at WHF at around 9.05am and was taken through the house by Woodcock to view the bodies. Within roughly twenty-five minutes, by about 9.30am, he had left the house and went to Miller, Cook, Stan Jones and two other SOCOs outside in the yard, where he stated it was a suicide and explained how it had happened. This to me was Taff delivering it as a settled fact, and not open for discussion, all the other officers just fell into line with What Taff had said. and after that, Woodcock did not see him again.
So in effect…. A murder suicide conclusion was formed by Taff, and presented within 25 minutes of arrival, prior to any forensic examination, and acted upon as a settled fact, and by early afternoon the bodies had been removed!