In the TV series Oz, Vernon Schillinger (leader of the Aryan Brotherhood) raped the new prisoner and former laywer Tobias Beecher. Also, he tattooed him with an swastika.
If Beecher wanted, he could have proven that this really happened and Schillinger did this.
However, in later episodes of Season 1, it was revealed that Schillinger was hoping for parole, hence he behaved good and keeps out of everything; in particular he did not put up a fight against Beecher when Beecher went crazy.
Why did Schillinger behaved in that way? If he wanted to come free, the raping of Beecher was too much a risk in the first place!