That's exactly what I said.
As for the evidence, if you are given a list of names, but the list was stolen from a foreign banking institution, do you have the right to use the list? In Liechtenstein, the employees from the bank were prosecuted. In fact, they are still being prosecuted in Europe. They are even wanted by INTERPOL.
Do you have any measures which would protect your witnesses, who might even be considered as being political refugees?