Former Miss Nevada USA Katie Rees was arrested this in Las Vegas for allegedly assaulting a police officer.

Rees was pulled over shortly before 3:00 AM for a traffic violation. According to Las Vegas police, when they attempted to arrest her, "she became physically aggressive towards the officer."

Cops tell us they were just going to cite Rees but when she went nuclear, they took her in.

After the jump are the racy photos that lost her the Miss Nevada crown. These images are the definition of racy and are definitely over the top for a pageant winner. (images are NS4W)