is a Japanese television detective series that first aired on TV Asahi on June 3, 2000. It has been adapted into six films: ' (2008), AIBOU: CSI Files (2009), ' (2010), AIBOU: X-DAY (2013), ' (2014) and AIBOU: The Movie IV (2017).
The drama features , a police inspector assigned to the fictional of the Tokyo Metropolitan Police Department and his partners as from 2000 to 2009 and again from 2022 onward, from 2009 to 2012, from 2012 to 2015, and from 2015 to 2022. In Season 15 Episode 3, Roland appears as a host.
AIBOU is also broadcast with English subtitles in Hawaii by the television station KIKU under the name Partners, and in Los Angeles by the station Japan Hollywood Network (before UTB 18.1) under the official English name AIBOU: Tokyo Detective Duo.
A Nintendo DS game called Aibou DS was published by Tecmo in March 5, 2009.