People tend to hypothesise on things, don't they? John McGee may have given statements, but they never reached the Portuguese police. Bridget O'Donnell is critial of the PJ, but she obviously didn't know that Amaral asked the British police to interview her husband. (and provided the questions to be asked)
https://www.mccannpjfiles.co.uk/PJ/JEREMY-WILKINS.htm
A recurring theme of the investigation into a missing child are the invisible 'anonymous' witnesses who leave no trace behind them but in Amaral's feverish imagination in the pages of his book or the chat show studios.
A second recurring theme which features in the investigation is the litany of actual witnesses who might have had information which could have been collated with the experience of others.
It is called 'collecting evidence.
One example of whom is Brueckner. For some reason he came to the attention of the Judicial Police and was visited, but he wasn't in according to Amaral who also claimed he was eliminated from the inquiry at that stage.
Amaral asked the British police to interview her husband. (and provided the questions to be asked)Do you remember what 'rogatory' means.
Quite obviously the British police carried out their duty and interviewed a key witness whom the Portuguese didn't bother to follow through on at the time.
They had no problem bringing the Smiths over who seem to have been asked about Robert Murat.
Jeremy contacted the police because of his suspicions regarding the 'rasta man' he had encountered. The police weren't interested in that - not one question - but they were interested in the start of the investigation into the McCanns following Gerry's interview to the extent of requesting ~
2. In the spirit of Police to Police Cooperation we request the presence of a British Criminal Analyst who may be able to assist the enquiry.
Also the collaboration of the UK's "Child Exploitation Online Protection" may be useful if they wish to send one of their officers to provide assistance to the investigation,But they did not follow through with Jeremy on his original statement and according to him - never spoke to him again until Rebelo took over the investigation.
Interesting that fourteen years later, Amaral chose to publicise an image of Brueckner (who had a collection of wigs) with rasta locks photoshopped in. Did it hit a chord with him for some reason