Oliver na Inu, (Gosh!!) Konoyarou 2

Aoba Ippei is a police officer who works as a handler in the Police Dog Section of the Forensic Division. For some reason, his partner, a police dog named Oliver, looks like a man in a costume. Together with Oliver, (who is lazy and suffers with chronic rhinitis), they take on a series of inexplicable cases.
(Source: DramaOtaku)