I think Keela alerted to the presence of human blood because that's what she was traoned to alert to. Therefore the DNA found was from human blood imo.
DNA is in cells, and there is no DNA in red blood cells (RBCs). The body has a way of removing the nucleus from the RBCs. The lab must have a way of telling if the DNA is from a human. (I have no knowledge about that).
Grime hasn't said any alerts are corroborated...
When would he have said that?
we know when he did the searches in August 2007
We know when he wrote his report.
We know when FSS sent their report to the PJ.
Does Martin Grime make any announcements after the results come back? There is a rogatory interview with MG Dated May 14 2008.
In the rogatory he says "In this case in particular, where the dogs alerted there was confirmation by positive results from the forensic examinations. It is the investigators' responsibility to apply the results of the forensic analysis to the suspects, witnesses and crime scenes."
So that clearly states there was confirmation.