Strange that some sceptics here are criticising the British and German police for their failings without also extending that criticism to the PT police. Also, is this criticism a tacit acceptance that the McCanns didn't hide their child's body or is there still a belief that the police of three countries are conspiring together to protect the McCanns whilst at the same time drawing attention to their own failings?
The PJ looked at him at the time as a matter of procedure it would seem.
https://www.mirror.co.uk/news/uk-news/madeleine-mccann-cops-quizzed-nanny-22146406So how can they be criticised? We don't know why they dismissed him as a suspect but they did look into his possible involvement. How is it fair to say they dropped the ball when German Police and Met police seem to have known about him for 3 years now and still haven't found any solid evidence he was involved? It seems to me the German and UK police are at the same stage as the PJ were years ago despite knowing MORE about the suspect than they did.
"The Metropolitan Police said they were still treating the case as a missing person investigation, and that they had no “definitive evidence” indicating whether Madeleine is alive or dead.
“As the years go on, we are realistic about what we might be dealing with but there is always hope,” said Deputy Assistant Commissioner Stuart Cundy.
“We are asking the public for help to prove or disprove whether this man was involved in Madeleine’s disappearance.”
“We retain an open mind about his involvement and we will follow the evidence wherever it may take us.”'
https://www.independent.co.uk/news/uk/crime/madeleine-mccann-suspect-german-christian-brueckner-portugal-prison-a9550721.html