Evidence on Madeleine McCann case?

Just saw on American news that the McCanns are challenging the cadaver dog evidence legally. Caught the story while it was already in progress but their was a british man saying that there are sources in the Portugese Police leaking info to the media about the case. So that would raise a question if what they are printing is true or not. I would hope that those leaks are discovered and prosicuted. Although I am curious and would love to hear the facts they have I still stand strong on sticking with the laws. Unfortunately the press and these leaks are making the police look like idiots. I think British police need to stay right on top of this case and maybe even send their own PI's over there because is affecting Britian as much as portugal. Going to start having violence surface likely and already has a bit from what I have heard over in GB now that they are home and we don't want that so the case needs more then ever to be solved.