Sarx,
I will have to go get the links, but there are several 'dog' issues in this frustrating case.
First, they could apparently not use scent dogs at the start because they needed the mother to send things from his home 7 hrs away. Apparently there was nothing his Dad could offer because Dylan had only been at his home for one night before he went missing.
Can scent dogs use pillow cases or sheets or do they need shoes or clothing?
Then, the searchers sent divers into the reservoir because three separate dogs hit upon scent on top of the water in the same place. [ I guess they were cadaver dogs] After 2 days of diving, the authorities said ' the dogs were wrong.'
Now, 11 days later, they are apparently bringing dogs to the dad's house. [ am I correct?]