The Trace is a Charm put on Wizards and Witches who are under seventeen years of age. When any magical activity is performed in the vicinity of the underage individual, the Improper Use of Magic Office within the Ministry of Magic is alerted to the spell that was used and to the location of the caster and the time. The charm allows the Ministry to track Underage Magic, which is banned under the Decree for the Reasonable Restricion of Underage Sorcery. The Trace automatically breaks upon a wizard or witch's seventeenth birthday; Remus Lupin and Ron Weasley each claimed that it was impossible for the Trace to continue to function on a person over the age of seventeen and that it could not be placed on an adul



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