EclectEcon

Is it appropriate for the university to bar the tax authorities from receiving information about a student's class schedule?

I received the following notice from an associate dean a couple of days ago:

It has come to my attention that Canada Customs and Revenue Agency has approached an instructor in a large first year course to provide information about a student's examination schedule so that the student could be served with papers, presumably at the examination. (CCRA was clearly fishing. The student in question is not enrolled in that instructor's class.)

There are NO circumstances under which any information about students should be given out to persons outside the university. If faculty or staff receive inquiries of this type, they should direct the questions to the Office of the Registrar.

Does this sound weird to you? Why wouldn't the tax authorities go directly to the registrar in the first place? And if they had already been rebuffed by the registrar, how would they go about selecting various professors for their fishing expedition? Do you think maybe this was a collection agency or something similar?