Yes but the marks are indisputably there. They can be interpreted many ways. Who made them, and whether they have any relevance, are matters of opinion. But no-one can claim they are not there. (Definition of hard evidence IMO).
Unidentified hair.Unidentified fingerprints,Marks on shutters
Yes, they are evidence, but it requires proof or elimination before it is classed as hard evidence.
Recognized fingerprints are Hard evidence as are recognized hair, DNA and several other factors.
The witnessed fact that the twins appeared to be in an unnatural deep sleep, would also cause someone to believe it was evidence of some drug being administered to the children. However they tested negative of any drug content. So evidence and suspicion was eliminated.
Open window-Yes evidence. Evidence of what?......that is still to be verified.
It’s all too iffy.Elimination by studying all other possibilities is the only way that a conclusion can be reached(if at all).
We must be careful not to determine verifiability of evidence and put it in the category of hard evidence.
That is why I was trying to find evidence that might be a possible and simple reason for the existence of unidentified hairs in 5A.