Police/prosecutors will generally try to build a case before they decide to simply bust into someone's house. And they work on that case for a long time because it needs to hold up in court. I'm not saying that it isn't possible (and of course depends on where you are) but if in fact the law specifically states that you have to either sell [1] or use the money (and not possess it - which was my hypothetical question) then I can't seem them breaking in w/o proof that that is the case. That's the "if".
You are kidding right? People's homes get raided all the time on just a phone call. They don't need a "case" and they will likely kill your dog just because they can.
[1] Edit: Add manufacture as well...