When you're doing a deal with someone in the southern Sahara, it's a very different way of doing business than in London. You can't sign them in the usual way because they'd end up getting ripped off, which would defeat the object of setting up a label like this.
“I think in the corridors of power these dangerous kinds of orders are issued in a much more vague way, passed down two or three levels of command before they're given to the assassin.”