What leads you to believe they did.
Just following the case and using a huge dollop of common sense. I believe it is ludicrous to suggest that two national police forces acting independently of each other reached virtually the same conclusion that there remained work to be done one Madeleine's case without checking out all that had gone before.
SnipDetectives from Scotland Yard have been granted permission to review the files of Portuguese investigators for the first time.
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The move comes after the couple made an impassioned appeal for David Cameron, the Prime Minister, to help them revive the search for their missing daughter.
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"That is simply to make sure that nothing has been missed, that there is not a vital piece of information sitting in Portugal, or in Britain, or in the private files, that linked up will suddenly unlock this.
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He said the review would require "co-ordination and co-operation" from police in Portugal, which the McCanns were "pleased" to have.
"It's movement on the case," Mr Mitchell said. "Something they haven't had for four years. So yes, they will draw strength from this, if not direct hope, they will draw strength that perhaps elements of this complex equation are possibly on the verge of being opened up.
"More information will be forthcoming, and with the co-operation of the Portugeuse, hopefully it will lead to that examination of everything that they so desperately want to know."
Madeleine's parents particularly want to know what mistakes have been made in the search for their daughter, what lessons have been learned, and what information is already out there that has not yet been collated, he added.
https://www.telegraph.co.uk/news/newstopics/madeleinemccann/8511049/McCanns-draw-strength-from-Scotland-Yard-move.htmlSnipScotland Yard says it has "new evidence and new witnesses" in the Madeleine McCann case and has opened a formal investigation into her disappearance.
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Madeleine's parents, Gerry and Kate McCann, said the shift from review to investigation was "a big step forward".
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Det Ch Insp Andy Redwood, who is heading what has been called Operation Grange, said: "The review has given us new thinking, new theories, new evidence and new witnesses."
His 37-strong police team is two-thirds of the way through examining 30,500 documents from files held by the Portuguese, private investigators and British police. Some fresh interviews have also taken place.
"Over the last two years what the review has told me is that there is no clear, definitive proof that Madeleine McCann is dead," Det Ch Insp Redwood said.
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Detectives say Madeleine's parents, the friends the McCanns were with in Portugal and people known to the family before they went away are not suspects or people they need to investigate.
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The former head of the National Police Improvement Agency Peter Neyroud said it was a difficult investigation because it involved two countries, possibly more.
"It was always going to be an expensive inquiry and it is a fine judgement as to how far you go on but if, as appears, there are fresh lines of inquiry and a case worth pursuing, there is a young lady out there who deserves to be reunited with her parents - or a murder case that deserves to be pursued."
https://www.bbc.co.uk/news/uk-23179230
