I don't know why he suddenly decided to speak to the Met after 9 years, but I suspect it wasn't a belated sense of social responsibility.
According to an internal Greek police report, Busching’s information was described as “given voluntarily and without monetary or other consideration”.
It added that it had been “cross-checked and is considered a reliable source”.
It also revealed how Busching had tried to report his concerns to the Portuguese police but had been fobbed off. :::: :::: :::: :::: ::::There is always the possibility that his allegation met with the same reaction from the Portuguese police that a few others reported they received.
This is not a nice guy. Law breaking was a way of life for him although it seems he did draw the line at some things ~ for example, abducting a child.
I don't think he would find making an approach to the police an easy thing to do. If he was "fobbed off" when he did make the approach ~ I really don't see him hanging around to try for a second go.