In the Harry Potter universe, an Auror is a highly trained witch or wizard who works as a law enforcement official for the Ministry of Magic. They are an elite group of magical crime fighters who are responsible for capturing and fighting against the forces of the Dark Arts. Aurors are highly skilled in Defense Against the Dark Arts and are trained to apprehend and detain dangerous dark witches and wizards. They are like a police force and sometimes work as intelligence agents. The requirements for becoming an Auror are quite stringent, and it takes three years of training after attending Hogwarts. To become an Auror, a candidate must meet high academic standards and undergo rigorous training. Aurors have the authority to arrest malefactors like Death Eaters and have been given authority to use deadly force against Death Eaters in particular. Some of the most powerful Aurors in the Harry Potter series include Nymphadora Tonks, Alastor ‘Mad-Eye’ Moody, Kingsley Shacklebolt, Neville Longbottom, and Harry Potter himself.