The search won't have been Random, albeit possibly without result. There are so many Wells.
I see no purpose in continuing to the rubbish the Investigation by The PJ, although I have no idea of what they think they may be doing, beyond the fact that they can't refuse.
In retrospect it is all awful that a child should have been so lightly discarded.
I don't think Madeleine's case was ever going to be solved without input from people who were likely to know the perpetrator/s or had their own suspicions.
That could only have come from associates or fellow criminals ~ I think that is what we have seen happening.
Just as I think that recently the German investigators and those from Portugal collaborated on the search of the wells and the particular locations of the wells chosen.
I think the investigation is very advanced now as one fact is fitted to another, but I think the foundation blocks for that stem from the initial evidence collected by the Policia Judiciaria regarding the Luz phone traffic around and on the night Madeleine vanished.
Lions led by donkeys springs to mind.