I understand that this provision could pose a number of difficulties with regard to the burden of proof.
We see that a number of nations have legislated in such a way that there is upstream assurance that things have been done ethically. Take Taiwan, for example. They require patients who have received transplants overseas to provide certain information in writing about the transplant they received in order to receive care in Taiwan, following that transplant, I imagine.
Is this the kind of measure that would make things easier? Rather than having to act downstream, we can act upstream to make sure things have been done ethically.