Very interesting reading on this forum -- informative, but a lot of entrenched views from self-proclaimed experts, whose reasoning skills seem to be entirely inductive.
Having read through the forum, and documents, and expert analysis. I'd stress the following regarding the dogs.
- It is highly probable that they detected cadaver smell.
- It is possible, given that she spent time there, that the smell is from Madeleine.
- It is possible, given that Mrs McCann was a doctor, that it was a cadaver odour transferred from the numerous corpses that she came into contact with through her job.
- It is possible, given that the apartment was frequently inhabited by other families, that cadaver odour transferred from their stays.
And similar reasoning can be used with regard to the garden area and the hire car.
Given that there was no forensic evidence to build on the dogs, the evidence does not stand up, nor would it ever stand up in a court of law.
Thus, I find it somewhat interesting that so many view the dogs as concrete proof of the McCanns' guilt. It must be interesting to have a mind that jumps to conclusions that aren't based on logical reasoning...