I knew a keep up here, a friend actually, and we both got a surprise visit from Health Canada department. (you know, the big dark suburban vehicle!).
(I thought) they got to me first, asked questions at my home, had me show them where I stored my treatments in the basement, took pictures, etc. Then he asked me to take him to my closest yard, and open up 2 random hives, took pictures, said everything was good and left!
When I got home there was a message on my answering machine from my friend "warning" me they were on their way to see me! (just a little late!

)
Anyways, when they went through his hives with him, he had been using something allowed in the states but not up here.
All they said was "You do know that's not approved up here?". When they were done, they said everything was good and left!
This had nothing to do with any beekeeping inspection or anything, although the guy did have his own suit. I think it was just some kind of snap health thing to see if anything untoward was going on.