I suspect that if the same had happened in the UK - the police would have immediately arranged to have the twins checked out - once the parents expressed concern. They would not have all gone home as the Pj did - and left the parents not knowing what was happening - and then done nothing.
There is no evidence either that Kate did not go out looking for Madeleine. You just choose to believe it because you want to. The GNR officers she spoke to first - before she set off would know, but as there is no witness statement signed in blood from them saying that - you can carry on choosing to disbelieve it. Your prerogative.
No evidence they did say anything to the police whatsoever on that night or any other time,express concern for twins or askfor tests,until three months later, zilch, not gerrys or any one elses testimony, not kates, either, nothing in their statements at all, not interviews, or chats with friends and famioy, nothing,until woopy doo four years later Kate pens it, so must be true
No evidence Kate searched either, in fact the opposite is true,people said she stayed in the flat....your perogative to believe her on her word ONLY