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[Fantastic Beasts]A Question About Newt's Wand (Spoilers)

Both Newt and Hagrid were expelled for similar circumstances, though no one died in Newt's situation, so how did he get to keep his wand? Could it have been the age in which it happened? Hagrid was in his third year. I have no idea when Newt was expelled, but it was also proven soon after that Newt was protecting a friend.
gpt
Newt had passed his OWLs, at which point he was free to leave Hogwarts and do as he pleased as an adult wizard. He was expelled while in his NEWT years. Compare Fred and George Weasley, who passed their OWLs but left Hogwarts in the middle of their seventh year.

Hagrid was expelled in his third year, and was therefore not qualified as a wizard.