Im not trying to make anything up or make any one look anyway.. The McCanns are innocent right now. They have not been found guilty let alone tried for anything.
At this point their little girl is still missing and there is no proof of any death occurring.
"Law enforcement sources tell bigcountryhomepage.com that "hits" can range from decomposing flesh to blood found on a bandage. In many cases, cadaver dogs are trained to alert on any type of human blood.
Many cadaver dogs can sniff out the presence of blood, bones, organs, teeth, and other body-related items. The dogs are trained to specifically recognize human scents and not those of animals."
http://www.bigcountryhomepage.com/s...adaver-dog-hit/d/story/-aEhDCIp2E6fzad8Sd0f4A
It stands to reason that if a dog is trained to smell decaying human flesh, Any blood that is in the room and decayed would be something the Dog could hit on. This is a hotel room. Who knows what has happened in it. What could have been in there at one time. Same for a trunk of a car.
"Testing for certification takes one week. In order to be
certified, blood, tissue, or other human remains are hidden and the canine must
find the hiding place."
http://www.policek9.com/Fleck/Cadaver Dogs.pdf
"It is true that Dr. Mires testified that the fact that a cadaver dog alerted at a
certain spot was "not enough by itself" to prove the presence (or presence at
some time in the past) of human remains to a reasonable degree of scientific
certainty"
Same link..
There is just no way to know if that dog hit on something what it actually was.