Special Investigation Unit

The Special Investigation Unit is a division of the Tokyo Metropolitan Police Department established to investigate strange occurrences caused by Roidmudes and the protagonists of Kamen Rider Drive.

The Special Investigation Unit was formed following the Global Freeze that occurred on April 8, 2014, in which the Roidmudes rose up against humanity and trapped a quarter of the world in slowdown, only to be stopped by Kamen Rider Protodrive. After the Roidmudes resurfaced several months later to rise up again, the SIU began investigating bizarre happenings that were linked to crimes committed by them.

Members

 * Jun Honganji - Captain
 * Genpachiro Otta - Lieutenant
 * Shinnosuke Tomari/Kamen Rider Drive - Detective
 * Kiriko Shijima - Detective
 * Rinna Sawagami - Researcher
 * Kyu Saijo - Researcher

Allies

 * Go Shijima/Kamen Rider Mach
 * Chase/Kamen Rider Chase
 * Krim Steinbelt
 * Roidmude 072