In an interview, the author, Mr. Qingshan, revealed that An Shitou's initial role was not a policeman's identity, but a very bad role, but the specific role background was not explained in detail. When painting the length of his first appearance, Qingshan felt that An Shitou was very handsome and should not be set as a bad guy, so he was eventually changed to a public security identity. Because too handsome directly washed white and became the undercover of the black organization, people can't help but exclaim: the author is so capricious.
In addition, the original setting of An Shi was to introduce Richard Moore, but this setting was later overturned and abandoned by the author. However, the entanglement between An Shitou and Akai Shuuichi was buried from the beginning, which made the role more full. Anshitong's setting changed from bad to good, which also made fans feel interesting. The handsome characters in Conan's cartoons are probably the just side in the author's eyes. Looking at the characters in the black organizations, the good-looking ones are basically undercover. Maybe one day Gin will suddenly wake up and find the undercover by his face value.
The prototype of Anshitou is Amelot in Gotham, and the prototype of Akai is Xia Ya in Gotham. According to the correspondence of the prototype, the opposite position of the two is unchangeable.
If the safe house is washed white, then the Akai well should also be blackened. However, because Akai is the setting of Justice Gin, blackening Akai is unthinkable, so it is difficult to wash the white room.
Helping Conan and other behaviors does not mean that Anshi is on Conan's side, but because of the influence of the police academy, his character is white, but the white character is not contradictory to the black position. Do not rule out Anshi's disguise for better undercover investigation.
Anshi's brilliant sunshine can't confirm his position. Members of black organizations should be as fierce and rigid as gin. It is not surprising that the author portrays people with sunny surfaces and dark hearts, which also makes the roles more diverse.
The above is just a personal opinion.