The big question will be the one that you posed: how do we in fact ensure that his wife and that business are not actually appearing before him as a decision-maker? He's already indicated, of course, that he would recuse himself on a case-by-case basis
But I think your question, if I don't misinterpret it, is how do we know this globally? What we have done in other circumstances—I'm not saying we're going to do this in this circumstance, because we're not there yet—is that we actually got undertakings from one spouse to the other that.... For example, the spouse outside the IRB would write a formal letter to their own spouse saying, I undertake not to ask you any questions about the board's business. I will not ask you to interfere or to look through data bases, etc.