Kochira Katsushikaku Kameari Kouenmae Hashutsujo - Akimoto, Osamu

The typical Kochikame plot involves Ryou-san coming up with a money-making scheme by inventing a new gadget or capitalizing on a fad, achieving great success, calling on Nakagawa's help as things turn sour, and finally losing it all as the fad runs out of steam or out of control. While the plots are gag-driven, much of the humor comes from the juxtaposition of mundane characters with the bizarrely incongruous (Nakagawa's wealth, Maria's appeal, everyone's lack of actual police work), most of which is never explained or rationalized in the slightest.

(Source: Wikipedia)
Included one-shot:
Volume 105: Robot Santapei

Kochikame had been the longest-running manga in the history of Weekly Shounen Jump and won the Guinness World Record for "Most volumes published for a single manga series".

The series had two chapters published in English in the educational publication Mangajin's issues #55 and #56 (May to June 1996).