Department of Magical Law Enforcement
From Hayashi Park Potterverse for 5th ed. Dungeons and Dragons (5e)
Headed by Auror Percival Graves (later an assumed identity of Gellert Grindelwald)
MACUSA’s second great law enforcement challenge was the number of wizarding criminals who had fled to America from Europe and beyond, precisely because of the lack of organised law enforcement such as existed in their own countries.