During the First War against Voldemort aurors had authorisation to use the Unforgivable Curses on suspected Death Eaters: that is, they received licence to kill, coerce, and torture them. Many of the Dark criminals in the "Harry Potter" universe first duel with the aurors sent to arrest them, before finally giving up their freedom. Aurors also operate to protect high-profile targets such as Harry, Hogwarts, and the Muggle prime minister – in "Harry Potter and the Order of the Phoenix" auror Kingsley Shacklebolt worked secretly in the Muggle Prime Minister's security detail.