Kazuo Koike
is a Japanese manga series written by Kazuo Koike and illustrated by Noriyoshi Inoue, serialized in Shueisha's "Young Jump" between 1985 and 1991, and collected in 27 "tankōbon" volumes. The series follows the violent exploits of the toughest cop in the NYPD's 34th precinct, "Sleepy" John Estes – known to his enemies as "Mad Bull" – and his partners, Daizaburo "Eddie" Ban and Perrine Valley.