Your criticisms are only valid if you know enough about the training and handling of this type of dog for your opinion to carry weight. Afaik you don't have any expertise in the subject so your opinion is valueless imo.
The dog's trainer and handler, who has considerable expertise and experience, reported that the dog Eddie showed interest immediately on entering 5A;
"I first noticed is that as soon as I came in that the dog was very excited and as a handler I can pick up his body language etc and it would appear to me that as soon as he has come into the house he's picked up a scent that he recognises"
https://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES.htm
For me, that explains why the 5A search which followed was thorough. Had the same behaviour been seen on entering another of the apartments I expect the time spent there would have been longer too.
We know that Eddie alerts to blood as well as Cadaver, don't we ? Keela alerted to blood in there and Madeleine had grazed her knee on the plane steps, also we understand that one of the children had a nose bleed.
Eddie is/was an exciteable dog, and it was his first apartment, it seems. He wanted his reward; was it a tennis ball? So he could have alerted to this blood, or to any remnant scent from the ashes/watch/ hospital pyjamas of Tasmin Silences Grandpa, who died whilst resident in that flat.
BTW, since when have you become an expert about the training and handling of this type of dog. Do you have any worthwhile experience in the matter? If you don't then your opinion is valueless imo. especially as you are so biased as to only allow for the one scenario.
