Actually, I just thought of a potential HP comparison that might kinda
work. ;) Just comparing the premise to HP in general seems a stretch, but if you drill down and, say, present it as: "What if it were a show about aurors
? Not specific to Rowling's universe in that they are dark wizard hunters, mind you.. but essentially those who are tasked with policing in ways that defend against, as well as utilize, magic for investigation." And you know, aurors are essentially just government employees, they have work issues, they have baggage, they have babies (Hi, Teddy Lupin. ;) )
I can't imagine anything THAT specific would make it into a pitch meeting, of course. Hee. But it's a stronger comparison IMO.