I do wonder since this article came out whether Scotland Yard have managed to trace these people
It went very quiet about that line of inquiry. Perhaps they were traced and eliminated.
I believe that two Scots murderers and paedophiles who were also checked out, were running a cleaning business and may have been in the Algarve at the time Madeleine disappeared (they may have refused to speak to SY, if memory serves me well).
http://www.dailyrecord.co.uk/news/crime/spanish-detectives-fly-scotland-quiz-5317272I think the police were carrying out due diligence.
Checking out people who might have been overlooked at the time as well as other names which have since come up.
A monumental task whichever way it is viewed.
Quote
He said it was “perfectly probable” that information that could identify the suspect or suspects responsible for Madeleine’s disappearance was in the police files.
He added: “We have to ask ourselves why are cases unsolved and, on many occasions, we find we passed the suspects by already and the suspect sits within our system.”
Mr Campbell said there were a “good number” of people who could be interviewed and eliminated to allow investigators to focus on a smaller group.
He endorsed the claim that Madeleine could still be alive, saying: “You only have to look at the case in Cleveland, Ohio, and the European cases. Of course there is a possibility she is alive, you cannot exclude it. But the key is to investigate the case and, alive or dead, we should be able to try to discern what happened.”
A Yard spokesman stressed last night that the Met was not urging the Portuguese to arrest any suspect.
He said: “Our investigative review is ongoing and we are encouraged by the progress we are making.
“We are reviewing a significant number of documents and continue to identify potential lines of inquiry.
“We can confirm that as part of this process we have identified a number of persons of interest, but any suggestion that the Met is asking the Portuguese police to make arrests in connection with this inquiry is entirely inaccurate.
https://www.express.co.uk/news/uk/400574/Madeleine-McCann-hope-as-Scotland-Yard-identify-handful-of-suspects
