Conan's biggest feature is that the super reasoning plot is very exciting to watch, but every case in each episode will have a less intelligent person, let's see who it is.

1, Yamamura Fu, can be said to be a character with quite weak reasoning ability in Conan, gunma county police, very timid, how to look like a policeman, the reason why I chose to be a policeman is because when I was a child, I liked to see Kudo Yukiko on the screen of the female policeman image, conan called the first side of the police circle, very funny, but kind heart, good communication.
2, Megumi Thirteen, Maori Kogoro's former boss, a very righteous policeman, wearing a beige coat and beige hat every time he appears, he can be seen in basically every episode of Conan's entire series, but it is funny that he has never solved a case by his own ability, and his reasoning ability is relatively poor.
3. Takagi Shi, The Inspector General of the Criminal Investigation Division of the Metropolitan Police Department, The Inspector General of the Three Departments of Forced Crimes, and a subordinate of the Thirteenth Police Department. His personality is honest and honest, easy-going, and he is known as a "good person". Her reasoning skills are very poor, and she has a relationship with Miwako Sato, so as long as it is related to Miwako Sato, her IQ will become higher.
For these people in Conan who have poor reasoning skills, do you have anything to add?