Inspector Megure

The first police officer seen in the series and an old colleague of Kogoro's. Megure used Shinichi's detective talents after he found out how good Shinichi was (volume 21). At first Megure seems quite foolish, he's actually quite a good policeman, just prone to depending on Shinichi and then Kogoro to solve baffling cases. Megure always wears a hat and refuses to take it off, even when he's hospitalized!

Inspector Shiratori

Shiratori appears quite often in the manga, but tends to figure more prominantly in the movies. He first appeared in the first Conan movie (Timed Skyscraper). He's a good detective, very clever, but sometimes overlooks some evidence in favour of a more logical explanation. He seems to be a little suspicious of Conan's intelligence.

Wataru Takagi

Takagi is one of the most frequently appearing police characters along with Megure despite appearing late in the manga volumes (18). He's young, good natured and sweet. He doesn't have the greatest analytical skills, but he does make some good intuitive deductions. Conan and the Detective Boys often take advantage of his good nature to get information or so they can tag along on cases. Takagi respects Conan's intelligence and will often listen to him. He is in love with Detective Satou and recently it seems that his affection is being returned.

Detective Miwako Satou

Satou is a very good detective, clever and active. Her first appearance was in volume 19. She's often teamed up with Takagi and tends to be better at handling the cases. She is highly suspicious of Conan and Haibara's intelligence and, like Takagi, often listens to Conan's deductions. Her father, also a police officer, was killed when she was young. Recently she seems to be returning Takagi's affection.

Detective Yokomizu

An inspector in Isu, a popular resort area in Japan, he appears in every case that happens there. Naturally he comes to know Conan, Ran and Kogoro very well! He is also a big admirer of Kogoro's deductions. He has an identical twin brother who turns up in volume 34.

Heizo Hattori

Heiji's father and the Director General of the Osaka Prefecture police department. He first appeared in volume 15. A very stern and forbidding man, many find him a little scary! He is very strict with Heiji and doesn't think Heiji should involve himself so much in cases since he thinks Heiji messes up the investigation - this is a cause of friction between father and son. However I think Heizo is secretly proud of his son's abilities! Heizo is quite tricky and very good at his job.

Toyama

Kazuha's father and the Head of the Osaka City police department, he first appeared in volume 19. He and Heizo have known each other for years. Toyama is also stern, but he's more lighthearted than Heizo. At one point Toyama suggests to Heizo that Heiji and Kazuha should get married, but it turns out he was only joking... maybe. He gets along very well with his daughter.

Otaki

Osaka police officer who has known Heiji for years (calls him 'Hei-chan') and has a good opinion of Heiji's skills. He often appears in cases set in Osaka. His first appearance was in volume 19.

 Yamamura

A very eager police officer who first shows up in volume 14, Yamamura tends to jump to conclusions easily. He is a great admirer of Kogoro and also of Yukiko Kudo. He is located outside of Tokyo - one of the areas he works in is Gunma prefecture. Conan has used him once to 'solve' a mystery.

 Chiba

One of the officers under Megure's command. Chiba is often a back-up to Takagi. He is a good policeman, very genial and often encourages Takagi's romance with Sato.

 Yumi

A policewoman in the traffic division, Yumi is good friends with Takagi and Satou. She often teases Takagi about his feelings for Satou and tries to play matchmaker. She and Satou frequently hang out together - which is how Yumi knows that Satou likes Takagi about as much as he likes her. She is a little envious of Satou's popularity with the male officers.