Chen Ming could tell from the database situation.
Although the identities of An Wuping and a bunch of people had "I have a problem" written all over them.
Moreover, the colonial entry review definitely knew this when receiving identity information, otherwise they wouldn't have proactively stored these identity details in a separate foreign population database.
Yet even so, the colony still opened up to people with unclear identities like An Wuping, without directly notifying the police department for arrest.
Clearly, false identities have become a stable part of the gray area industry chain in the Edge Star Realm.
Of course, whether it's an industry chain or not is not important.
What matters is that An Wuping's identity is in the section of the foreign population that cannot be verified through other colonies.
This is the reason that false identity holders face restrictions when entering relatively important places in the Empire.
