My sister in law saw a PR being denied entry due to not having her PR card with her at immigration check. This person ended up having to go back. This makes sense to me. This is to prevent people with expired PR status from getting in to reestablish their PR status.
Assuming the accuracy of the report, it illustrates that anomalies occur; it only shows that sometimes there are occasions in which things do not work as they should or as the law prescribes.
A Canadian PR is entitled to enter Canada. That is the law. A border officer does not have lawful authority to turn back or deny entry to any person whose identity is established (passport suffices) and who is a Canadian PR.
What may have happened is that the person claimed to be a PR but actually did not have PR status.
While PRs without a PR card are cautioned that it is best to carry some other documentation to show they have PR status, such as their CoPR, or alternatively some correspondence otherwise referencing their status, as long as the individual's identity can be established that will almost always suffice to also show PR status in the CBSA data bases.
Once CBSA determines a person is a Canadian PR, entry must be allowed. The
problem in not having positive proof of PR status is that means the examination can be more probing and take a lot longer, including a potentially lengthy period of waiting while CBSA makes inquiries to verify identity and concurrently status (again establishing identity almost always suffices to establish status). The problem is not about being turned back. With rare exception.
On the other hand (with some exceptions), a PR does need to present either a valid PR card or PR Travel Document before being issued a board pass and allowed to board a flight destined for Canada.
This has been discussed in depth and at length in the
Permanent Residency Obligations conference.
I saw a person at the airport CBSA booth who had no ETA, but was obviously allowed to board the plane and was allowed into Canada after a very perfunctory examination. Enforcement seems uneven....
Many travelers flying to Canada are not required to have eTA. Many travelers coming to Canada are not subject to eTA. Many are not eligible for eTA. That is, there are many exceptions to the eTA requirements. And airlines have discretion to allow travelers to board a flight to Canada even if the passenger is using a visa-exempt passport and does not have eTA. So it is difficult if not impossible to discern what happened or why based on a report with such minimal details.
There are two very different aspects of any such travel: how and why the traveler was allowed to board the flight is one. How and why a traveler is allowed to actually enter Canada upon arrival at a Canadian PoE is the other.
While the traveler's documentation is a big part of both, the requirements and restrictions are not the same for both. (As noted above, for example, if a PR manages to arrive at a Canadian PoE, no particular documentation is necessary for that person to be
entitled to enter Canada, albeit of course some documentation is practically necessary to establish identity.)
A traveler with a visa-exempt passport (but not exempt from eTA)
and who has not been granted a visa (work or study permit, TRP, or such) ordinarily needs to have eTA in order for the IAPI system to give the airline a "board" response, which generally an airline requires before it will issue a boarding pass and pursuant thereto allow the traveler to board the flight.
BUT airlines have discretion to allow or deny boarding notwithstanding the IAPI response. (Noting, again, that even travelers with passports generally subject to eTA requirements are
NOT subject to eTA requirements if they have a work or study permit, or a TRP otherwise issued.)
While technically a traveler who was allowed to board a flight to Canada based on presenting a visa-exempt passport, and who is otherwise subject to the eTA requirements but whose passport does not have eTA, upon arrival at the airport PoE can be denied entry into Canada on that ground alone. But denial of entry is not mandated. The person is not inadmissible because they do not have eTA. It is easy to think of scores of scenarios, situations, or circumstances in which CBSA might examine such a traveler perfunctorily and allow entry. Remember, the system is designed to identify and preclude inadmissible persons, and is not intended to unduly exclude travelers otherwise. Meaning that the objective is not strict enforcement of the eTA requirements, but better enforcement of inadmissibility restrictions.
It warrants noting that in the past, enforcement of the rules requiring PRs to present either a PR card or a PR Travel Document
for the purpose of obtaining authorization to board a flight destined for Canada was indeed uneven. PRs with visa-exempt passports were so commonly and routinely allowed to board a flight to Canada without presenting a PR card that many assumed the rules actually allowed this; and Air Canada's online information about necessary travel documents even so stated. But that was
NOT the rule. And on occasion PRs with visa-exempt passports but without a PR card were surprised and severely inconvenienced when an airline denied boarding. The eTA program changed this, not directly because PRs are not part of the eTA system, but indirectly because PRs are not eligible for eTA, so their visa-exempt passports cannot have eTA and thus will no longer get a pass for boarding. Canadian citizens with dual citizenship, with citizenship in a visa-exempt country, are affected the same way; they too now need to have a Canadian passport to board a flight to Canada (or obtain a special Travel Document).
Again, all this has been discussed in depth and at length in the
Permanent Residency Obligations conference.