Inner Circle
Yes, that would work well. I shall start making enquiries regarding the Polyjuice. It may take a little while as I will want to be discreet. It would also be interesting to determine if this method could be used more than once though that will take some time.
Yes, whatever method we used, we would have one bite at the apple. Would it be better to attempt this at a venue other than the home? We have not directly targeted employees of the DMLE in the past so their families have no reason to be specifically wary or stay within their homes. Admittedly the idea of attacking a home is somewhat easier, though it would need to be decisive and quick.