my dear Pathfinder. You are getting mixed up.
Cadavar dogs solely trained to find Cadavars alert only to cadavar odour, be it bones, cadavar blood, teeth, cross contaminates etc.
Cadavar dogs trained also to the dessicated blood of a living person will alert to the blood from a living person and to any remains of a cadavar. Eddie was such a dog, double trained.
As he was double trained so he alerted to dried blood from a living person and to the blood and any remains from a cadavar.
The dogs that you keep posting about , are it seems, just singly trained Cadavar dogs. They are different to Eddie. If they alert, the chances are that they are identifying cadavar odour.
In Eddies case the odour could be Cadavar or it could be the odour of dessicated blood from a living person. With his alerts it is imperative that the operator (Grime) should verify which type of scent he is alerting to. But this didn't happen at all alerts.
Therefore Eddie could have alerted to the blood from a living person or to a cadavar.
As over the years there would have been a number of cuts, grazes etc in 5A, it is far far more likely that Eddies alerts were to the dessicated blood from a living person than to a Cadavar.
You are all mixed up, between dogs that are singly trained and dogs such as Eddie which are doubly trained.
Can you understand it now?
PS No-body is saying that Cadavar or blood dogs are incapable of identifying the scents. They are very good at that. All of them.
But in eddies case, what did he identify? Was it dessicated blood from a living person , or was it a Cadavar?
Where Keela was brought in, it was shown to be the dessicated blood from a living person, of which there is likely to be several instances in an apartment as old as 5A.
OK ?