<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by YYZC2:
Canadian customs stations staff on the jetway of all flights arriving into Vancouver from China as well. I think the preliminary check is to make you sure you haven't flushed your documents down the toilet in flight in a bid to seek asylum upon arrival.
Not sure, just a guess.</font>
I'd bet money that is the case as well. Apparently China's most wanted citizen is under house arrest in Vancouver for using false documents to board a flight in Hong Kong. This is a pretty high profile case as Canada won't deport someone if they're facing the death penalty, he for sure is.
For the record, I've flown from Asia a few times lately and haven't had them checking papers on the skybridge, but i've gotten the once-over from customs a couple of times since I'm also in the single/male/young profile.