What exactly does Isotech sell? In the book we are told black market goods - weapons, weapon modifications are specifically mentioned. But from memory, and I don't have the rule book to hand there really aren't many things that fall into the black market or restricted category.
So when in part three of the scenario the PCs are given a chance to buy items from the Isotech showroom (p84, 3rd para) - what is on offer aside from thermal detonators?
Achy thought on how to expand the black market? What would the Empire want to restrict?