How do China students become policemen in foreign countries?

Yes, the landlord policeman can't be a policeman after he finishes college.

After formal military service inspection and so on.

Foreigners are not allowed to enter the police school. There are restrictions.

I wanted to study medicine before, but I couldn't. Doctors and other professions are limited to my own citizens, not to mention the police.

Generally, a green card that requires a change of nationality is not enough.

Because the police is a special profession, it is linked to politics, your identity and background. The document must be clear.

The green card is for you, except for political rights.

So a green card doesn't mean you are a Canadian citizen.

You must apply for a change of nationality.

Changing nationality requires work experience. After immigrants get enough points, it is much more difficult to get a green card to change their nationality.

So the landlord can seriously consider it.