[Solved] Underage Magic Behind Heavily Warded Buildings

In fanfiction I've noticed it is a common head canon for writers to assume that the trace can not detect the use of magic behind heavily warded homes such as Malfoy manor. The logic being if these charms are powerful enough to protect their home from external magic and in many cases detection then surely that would extend to the magical signature of the trace. In canon there is no direct answer to this question, at least not that I am aware of, so I wanted to know if there was an 'MH canon' on the subject.

The reason I ask is I plan to mention if possible the fact that Pyxis began to receive private duelling lessons during the summer of his fifth year at Hogwarts. Of course if the trace is still applicable even behind heavy wards such as the fidelius etc then I'll know to change that.

Thanks for reading,

Tye

I've never assumed that, but it's fair enough if that's what other people think. I thought it was more the case that the Ministry assumes that parents will prevent their children from using magic outside of school, and it prefers that the parents will punish their own children for using magic. Magic used in the Dursley's house was assumed to be Harry's because the Ministry assumed he was the only one in the house capable of using magic (so presumably it's a blanket detection of magic, the trace on an individual wouldn't have worked here).

I think a fifth year receiving duelling lessons is completely fine. There would be adults present so the student would be supervised. Bear in mind as well that students *can* be homeschooled, so they would be performing magic outside of a formal school in those circumstances, as well.

Thanks Carys

>_> Gives me all the ideas for charrie thnx @Dermod Larkin Morfessa & @Alain St. Clare