oxfordBloo has already covered this. Grime knew which car and apartment pertained to the McCanns. He knew he was there to help find evidence against them. The research I have linked to makes it clear that conscious or unconscious handler bias can effect their dogs' performance, is it not possible that this is what happened on this occasion? Google also Zampo the sniffer dog who alerted multiple times in the case of the serial killer who never was - handlers were told where they might find human remains, the dog alerted to 45 separate locations, it subsequently turned out no bodies had ever been disposed of at those locations. Why did this happen do you think?
Well, actually no............it wasn`t covered .
Links to generalised research accompanied by wordy bullshit doesn`t count, although it impresses some.
The queries were not addressed and generalised research into handler bias did not explain the specific alerts or non alerts and how they were achieved by "handler bias."
P.S.
You do realise that responding to your posts puts me at risk of accusations of WUMMING by Brietta and being called an
"it" who should be ignored and treated with the contempt
It deserves ?
I don`t want to attract such nastiness again.