Scotland Yard officers have no authority to question anyone in Portugal so this woman didn't even need to speak to them. If two officers from SY turned up without PJ being in attendance then they are out of order. Only a PJ detective has any authority to question people in Portugal and then only in certain circumstances.
I agree.
But I don't think anything has been done by Scotland Yard without the full knowledge, assistance and co-operation of the Judicial Police.
SnipExpat Carol said two plain-clothed officers acting for Scotland Yard asked about the German decorator.
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Carol said officers from the Portuguese Judicial Police were trying to trace her ex and another of his old flames, a German woman.
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Carol, 59, who has lived on the Algarve since 1997, said: “They came into the bar and said ‘You can thank Her Majesty for this visit’.
"That’s when I knew they were from Scotland Yard.
https://www.birminghammail.co.uk/news/midlands-news/madeleine-mccann-police-question-brit-17798566I think it possible that the police she refers to are Portuguese ... but whatever, if they were SY I doubt very much if they were acting without the PJ being in attendance.