a bad place to be

"Well, times like that bring out the best in some people and the worst in others. Crouch's principles might've been good in the beginning — I wouldn't know. He rose quickly through the Ministry, and he started ordering very harsh measures against Voldemorts supporters. The Aurors were given new powers — powers to kill rather than capture, for instance. And I wasn't the only one who was handed straight to the dementors without trial. Crouch fought violence with violence, and authorized the use of the Unforgivable Curses against suspects. I would say he became as ruthless and cruel as many on the Dark Side."

Sirius Black