Study Days at Hogwarts

Trace Silk is a more advanced tracking spell than the Tracking Spell.

It can locate the approximate location of an underage wizard, and with that underage wizard as the center, detect magic within a certain range around him.

When an underage wizard casts a spell in the presence of Muggles, the Magical Misuse Office is alerted and a written warning is sent directly to the person involved. (The first warning Harry Potter received without investigation is a prime example.)

How did trace silk come about?

The Harry Potter books don't go into detail. [Most of the fan settings are on the magic wand. A lot of people just think that this is the original setting in the book, which is really speechless. 】

The setting of this book is: generated through contract magic,

The original text is: A notice was sent to every student, warning them not to use magic during the holidays.

During the summer vacation, students at Hogwarts will receive a notice from the Ministry of Magic prohibiting underage students from using magic outside of school. (This reminds me of a similar summer vacation notice I signed before, and the inspiration came from here.)

Third-year students need a guardian's signature to go to Hogsmeade, so this notification signature is actually not unexpected.

This document will have contract magic, and the Ministry of Magic will pass the contract magic. Of course, the magic contract is not a ban, but a tracking and early warning, forming a surveillance of underage wizards, which is the tracking spell mentioned earlier.

When an underage wizard uses magic in an area where Muggles live, or in the presence of Muggles, or when someone uses magic around them, the Ministry of Magic's Misuse of Magic Office will be notified immediately.

In the Harry Potter books, there is no trace of underage wizards related to wands.

They would only use flashback spells to examine the perpetrator's wand to discern what magic he had used.

If the trace is related to the wand, I think I just need to change the wand to get rid of the Ministry of Magic's pursuit.

By the way, when you use wandless magic, the Ministry of Magic usually has nothing to do with you because there is no evidence.

When students at the Wagado School of Magic were accused of violating the International Statute of Secrecy, they had a powerful excuse: I just waved my hand and never meant to dislocate his jaw.

As for Voldemort's murder of Old Tom and his family, it was not discovered because Morfin Gaunt (uncle) lived in that area, had a criminal record, and confessed to his "crime".

(Someone took the blame and was a repeat offender. Naturally, no one suspected it. Moreover, Voldemort was already very powerful at the time and may have had the ability to block the traces of the Ministry of Magic.)