Report, it, walk into any police station and report it. Very simple.

When you say you didnt want anyone to analize or give comments, why the heck did you give the whole drawn out story? Duh.

You said your friend doesnt know if there was something between them or not. Seems he isnt innocent, hence the reason he hasnt gone to the police station himself.

U know, you could go and report it for them, and see how long "I" or "M" or whatever will be your friend after her husband is put through the wringer on this.

I also dont get how she is here illegally. If her bf applied for a business visa for her, and immigration accepted the application who is to say she isnt working here? Maybe she is a consultant?

You are going to advise your friend to do something not in her best interest.