I found out who your 'Mr Big' was today from a comment on a blog site.
If a body is found close to the hotel, I think that rules out stranger abduction, though I am a bit stuck on where a family on holiday would come across a spade?
I disagree, Cariad, if a body is found buried anywhere in PDL it very firmly IMO does not rule out stranger abduction.
One worries what 'evidence' might have been left at a burial site to confuse the issue and direct implication from that individual or individuals.
I am still of the opinion this is all NSY are allowed to do ~ it covers areas of interest indicated in the initial investigation but not excavated ~ so it eliminates and ticks one box ~ though not perhaps the box they wished to start with.
If they are following a definite line of inquiry, it seems Madeleine's parents are being kept in the loop and are aware of what lines the inquiry is following.
I do not believe that would be the case if NSY had the slightest thought they had buried their daughter.