At least some content in this article is derived from information featured in Fantastic Beasts: Cases from the Wizarding World. Spoilers will be present within the article.
The Troll Patrol was a subdivision of the Department for the Regulation and Control of Magical Creatures (presumably under the Beast Division). It was specifically dedicated to the detection of hostile trolls. Prospective candidates were reminded to use all five senses when detecting trolls.
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