We knew he was a character that had a long deep mythology that we had built around his mother and some of the books coming out like Immortal Men, where he would have photo-kinetic powers where he would take light in through his eyes and be able to see things that other people wouldn’t. We wanted his abilities to be powers of detection, not big super powers like being able to fly around or something like that. We just wanted to give him a different way of seeing, because Gotham by day is something that Batman doesn’t see, being a nocturnal hero.
So when Duke goes to a crime scene, he absorbs light faster than we do, and he can manipulate the way that he processes light. He can see 5 to 6 seconds of what happened before, by seeing the ghosts of light that hit the objects in the room. So he can look back at the history of light in a room and see what happened right before. Imagine a crime scene for him, gives him these powers of detection that are really, really helpful that can open up whole new doors. Especially for a teenager at school, and he goes to the locker and a girl passes by him and he sees 5 to 6 seconds earlier, he sees her saying to her friend what a geek he is, so it’s an emotional power as well. It also plays right into his personality.