What would tell a woman who was raped?

[Lyric]

The time parameter is two years ago. It's my sister, and I don't know how to deal with this. I'm stunned beyond comprehension. She was raped by TWO men two years ago, and has spent the last two years as an alcoholic, avoiding the pain with alcohol. She finally broke down and told me the truth tonight.

So what do I do? She's afraid to press charges because she was doing something illegal at the time she was raped. *I* feel like she needs to report it no matter what, in order to keep other women from going through what she did.

What say you? Until tonight, I had assumed that my sister was an untrustworthy alcoholic, but tonight I found out WHY she's an alcoholic. I believe her because I know my sister, and she confessed to this under duress (thinking that our Mom is dying.) I think she should pursue it and put these guys in prison (she says she knows who they are.) She thinks that it's too late to bother with it, because the physical evidence is gone.

What would YOU do?