Tonks hadn’t been Prefect material while in school — she said she lacked the important quality of being able to behave herself — but was a good student, judging by the fact that she had high enough NEWT scores to join the Aurors.
Nymphadora Tonks leaves Hogwarts and starts training as an Auror
Date June, 1991
Certainty Inferred from canon
Location in Canon OP3: The Advance Guard
Type of Event Wizarding world