0th Investigation Department

0th Investigation Department (捜査零課(そうさゼロか))is a rumored special investigative division of the Japanese police that specializes in dealing with spiritual matters. It is unknown if the organization actually exists in the Toaru Majutsu no Index universe.

Angel Fall Arc

 * Main article:Angel Fall Arc

Kanzaki Kaori references the department after Tsuchimikado Motoharu says that the police force that was tasked on guarding the residential area where Touma's house (which has been invaded by Hino Jinsaku) lies has forced the media to move away, which makes Touma and Motoharu's job much simpler.