Stolen bitcoins are GONE, and the only way you'll get them back is through the kindness of a stranger who feels sorry for you.
So all this nonsense about where the MSAFE coins came from is a bunch of noise. One bitcoin is as good as another!
Again, Maidsafe may completely disagree with this position. I speak only for myself (and for the principles of the Mastercoin Protocol I designed).
But if you know for sure that the money came DIRECT from the criminal? Whats then? Suppose somebody sells Drugs to your daughter and the same Guy the next Day gives you the money to buy something from your store, and somehow before you deliver him the goods you are informed about the story? Will you still deliver it to him ? Ok when you take the same money after a travel to 100 of peoples thats something else and you can nothing do about it, and we agree...
Yeah, I'd probably seize the coins just to spite the criminal and out of my sense of justice. I'd do that for someone else's stolen coins too if I was 100% certain. That's what I meant by "the kindness of a stranger". I'd want to be a kind stranger.