"A CBSA officer at a port of
entry should examine Canadian citizens as expeditiously as possible. Once the officer
establishes that a person is a Canadian citizen, the examination should end and the
person should be allowed to enter Canada without further delay."

Nothing about secondary there, it's in the next sentence, which says that once the person hits secondary, no further questions should occur of a personal nature.

For primary:

Passport? Yes.
Valid passport? Yes.
Person in line = person in passport? Yes.

End of story. Examination should end.