I'm sure they do, but the amount of evidence they produced in this case is certainly interesting. The cadaver dog alerted to the apartment, on cuddle cat, on Kate's clothes, and in the back of the hire car (and a couple of other places I can't remember). And equally interesting was the McCanns' determination to undermine the evidence of the cadaver and blood dogs. It wasn't just Gerry being irritated by questions about the dogs - they ended up giving about 8 different excuses as to why the dogs were wrong, including: Kate having proximity to a lot of dead bodies at work in the 2 weeks before they went on holiday; Kate sometimes taking Cuddlecat to work with her; the dogs being influenced subconsciously by their handler; and the dogs getting confused by rotting meat or dirty nappies; the blood being a result of Madeleine's scraped knee or nosebleed. Obviously sniffer dogs aren't enough to convict anyone, but I think the amount of evidence produced by the sniffer dogs in this case can't be ignored.
but that’s my point.
the dogs didn’t provide evidence. They haven’t produced
any evidence in this case. Their indicating, wasn’t evidence. The McCanns didn’t seek to undermine the dogs as evidence, because the dogs were never evidential.
To an unbiased observer, they don’t add much - their signals could be completely on the ball and there
was a body where they signaled, or they could equally just be because the dogs were reacting to the high stress environment their handler was under (or any number of things).
I can’t find the sources which quote that Kate and Gerry made excuses, but
even if they did… it doesn’t really hold much weight. Because the dogs indicating don’t prove, or disprove, anything.
even if a body turned up exactly where the dogs indicated.. that
still wouldn’t make the dogs evidential. The body itself would be the evidence. The witness statement produced by a handler would be evidence.
I don’t just mean that there wasn’t enough evidence to convict the McCanns overall. I mean on their own merit, those dogs weren’t evidence. They aren’t recognised as being reliable enough to be evidential. It doesn’t meet the rules of evidence.
(and the threshold for something being evidential, isn’t the same thing as a burden of proof in a court of law as a side note.)
Now, a court of law obviously has a high threshold and just because someone isn’t convicted, or if they are tried and found not guilty - that doesn’t mean they actually didn’t commit a crime. It means the threshold of “beyond all reasonable doubt” wasn’t met. But that’s different to what I’m referring to here.
I’m referring to the dogs and the scent lineup, I’m not making a comment on how guilty or innocent I believe the McCanns likely to be. I’m stating that the dogs might as well be forgotten about, because they don’t offer or take away much from this very tragic case, I’m saying it’s unfair to point to the dogs as evidence of their guilt - because they simply aren’t evidence of anything.