Jaco the Galactic Patrolman

Jaco the Galactic Patrolman (Japanese: 銀河パトロール ジャコ, Hepburn: Ginga Patorōru Jako) is a Japanese manga series written and illustrated by Akira Toriyama. It was serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump from July to October 2013, with the eleven chapters collected into a single volume. It follows Jaco, an extraterrestrial police officer that has come to Earth to protect it from an evil alien attack.

The eleventh chapter reveals that the story is set before the events of Toriyama's Dragon Ball and features some of its characters. Since the series' conclusion, Jaco has become a recurring character in various Dragon Ball media. The first two chapters received a "Vomic" adaptation for the television show Sakiyomi Jum-Bang!. English-language publisher Viz Media serialized Jaco simultaneously in their digital Weekly Shonen Jump as it ran in Japan and released the single volume in North America in 2015.