"Mostly research, personally," Leon said, gesturing casually. "Figuring out theory, coming up with ideas to submit for development. Let me find..." He sifted through the mess of pamphlets on his desk. They'd been put together and set out by the man who'd taken the first shift in the booth, a man who only needed the coke-bottle glasses to fit the stereotype of the dodgy, nutty old coot who really oughtn't be allowed a wand anymore. "Here we are," he said, handing over the appropriate one. "There's research, like me, the Committee itself, who regulate everything, and the inventors, who develop the ideas."