Shibatora manga

Shibatora summary:

Officer Shibata Taketora works in a local koban (a small police office). He may have a child-like face on the outside, but he's more serious than anyone in his pursuit of justice! With his goal being to become a detective, Taketora confronts everyday problems that happen within the town! Various incidents within the street make him chase after and apprehend criminals!