Would you use a child caring service if you had no idea what checks they made on the staff used?
So much of this case has public opinion contaminated by what that misogynist git Amaral was doing for his own agenda with the UK press that indisputable facts are rarer than rocking horse poo. Even the News of the World that came up with that 'proof you can't see' story actually says well you can but through trees.
There is a limit to how much you can torture people for being stupid, wrong and unlucky. IMHO we're way past that and it gets in the way of finding who really were the criminal(s)