If the Met ever have to answer questions about this case I don't think they'll get away with blaming the lack if a JIT or the fact that they couldn't investigate in Portugal for their lack of results.
They knew (or certainly should have known) that the case wasn't theirs, that they were unlikely to get a JIT, and that they weren't allowed to investigate in Portugal before they embarked on the exercise.
Given those restrictions they will need to explain why they believed that they would be able to overcome them and solve the case.
One thing I do not foresee is the Met being called upon to answer any questions on the competence of their investigation having been in constant dialogue to update the Home Office of their progress throughout.
In my opinion you have absolutely no idea what went on behind the scenes in England and Portugal and your negative opinion is exactly that ... your opinion ... and in my opinion one which is based on little or no substance which makes it ill informed.
For example when things were still a bit 'leaky' in Portugal it became known that there was already cooperation between the police of both nations on Madeleine's case ... and had been going on remarkably for over a year before Amaral broke the news.
Proving that sometimes 'justice does work in secrecy' if I've got the phrase quite right.
SnipOn 1st March 2012, Gonçalo Amaral reveals, in an interview with Portuguese magazine 'O Crime', that Scotland Yard has been working with an investigative [Judiciary Police] team from Oporto.This is picked up just over a week later by Jornal de Notícias, who declare that the case is going to be reopened. However, this is swiftly denied by the National Deputy Director of the PJ, Pedro do Carmo, who guarantees that there is no new evidence regarding the disappearance of Madeleine McCann to prompt the reopening of the case. However, he does reveal that
the PJ team of investigators from Oporto was established one year previously and has been working in collaboration with the British policehttp://www.gerrymccannsblogs.co.uk/Nigel/id409.htmTherefore your supposition that Scotland Yard and the Policia Judiciaria went into their separate but cooperative investigation is exactly that ... your supposition ... as the evidence contradicts that the PJ woke up suddenly in 2013 and realised SY had gained a march on them as they had already been marching alongside each other on Madeleine's case for years.
In fact one could almost say they were in cahoots and the people who were entitled to know that were already in the know although you and I had somehow slipped out of the loop ...
But at the end of the day ... I don't think there will be many pejorative questions asked of the Met although I do think internal evaluations will take place on cooperative working and the benefits thereof.
In my opinion it should worry you that you think that either police authority went into Madeleine's case without performing the due diligence which was very obviously the hallmark of this investigation.