Status matters when it comes to inadmissibility. Foreign nationals (FN) --as well Permanent Residents (PR) to a lesser extent --remain strangers in a strange land.
There are various grounds of inadmissibility --here we are talking about those individuals that are in Canada. Status in Canada determines the extent of remedy and recourse available:
- Protected persons may not be removed until a danger opinion has been secured against them (this is in addition to any right of appeal they may have if they are Permanent Residents as well);
- There is a higher threshold to establish allegations of foreign criminality (s.36(1)(c)) against a PR;
- PRs don't face inadmissibility on certain grounds (like medical/health and financial);
- PRs may have a right of appeal to the IAD (the IAD can consider H&C factors);
- FN can be removed from Canada for even a scintilla of criminality (they can only afford a straight summary offence; IRPA presumes all hybrid offences to be indictable)