May I ask how you think covert surveillance would have been implemented, in practical terms?
Presumably with multiple teams of plain clothes officers in unmarked cars, expert enough in covert surveillance to avoid the attention of the McCanns, those they came in contact with, and the media circus. And all of that 24x7.
And for what? Dog alerts that had not occurred?
Is there any instance of, say, Leicestershire Police adopting this approach?
I'm not a policeman - so I don't know how it works. But I believe covert surveillance is a normal procedure used by the police.
It didn't appear to be a problem to Amaral when it came to surveillance of a UK police officer.
Quote from his book.We insist on knowing what our English counterparts have come to Portugal to do. I assign one of my investigators to follow the English superintendent like a shadow and to keep me informed about his actions. I want to be informed of everything he learns, the names of the people he meets and the places he goes to.
End quoteAccording to Amaral he suspected the McCanns of being a couple of criminals. Surely in those circumstances he would be interested to know more about why (after 3 weeks) they suddenly hired a car. It could be for perfectly innocent reasons - but if they
were guilty of a crime as he suspected - then it might not be?
As it turned out he concluded that they
had used the car for sinister reasons. Surveillance could have either confirmed that to be the case, or confirmed that it was
not the case - at least during the period of surveillance.